Kiyofumi NAGAI

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Organic colorant, coloring composition, and inkjet ink
- Patent number 10,703,911
- Issue date Jul 7, 2020
- Ricoh Company, Ltd.
- Takuya Fujita
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Cleaning filling liquid, cartridge, cleaning filling method, and in...
- Patent number 9,879,207
- Issue date Jan 30, 2018
- Ricoh Company, Ltd.
- Takashi Tamai
- B08 - CLEANING
Information Patent Grant
Inkjet ink, ink cartridge, inkjet recording method, inkjet recordin...
- Patent number 9,518,190
- Issue date Dec 13, 2016
- Ricoh Company, Ltd.
- Hiroshi Gotou
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Aqueous ink for inkjet, ink cartridge, and inkjet recording device
- Patent number 9,163,160
- Issue date Oct 20, 2015
- Ricoh Company, Ltd.
- Naohiro Toda
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Inkjet ink, ink cartridge, inkjet recording method, inkjet recordin...
- Patent number 9,085,706
- Issue date Jul 21, 2015
- Ricoh Company, Ltd.
- Hiroshi Gotou
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Liquid composition, recording method, and recorded matter
- Patent number 9,062,217
- Issue date Jun 23, 2015
- Ricoh Company, Ltd.
- Hiroshi Gotou
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Inkjet recording ink set, inkjet recording method, and recorded matter
- Patent number 9,034,091
- Issue date May 19, 2015
- Ricoh Company, Ltd.
- Akihiko Matsuyama
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Inkjet ink, inkjet recording method, and inkjet recording device
- Patent number 9,028,600
- Issue date May 12, 2015
- Ricoh Company, Ltd.
- Hiroshi Goto
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Liquid composition, recording method, and recorded matter
- Patent number 8,980,408
- Issue date Mar 17, 2015
- Ricoh Company, Ltd.
- Hiroshi Gotou
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Image forming method and image forming apparatus
- Patent number 8,899,719
- Issue date Dec 2, 2014
- Ricoh Company, Ltd.
- Hidefumi Nagashima
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Image forming method and image formed record
- Patent number 8,857,962
- Issue date Oct 14, 2014
- Ricoh Company, Ltd.
- Hiroshi Goto
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Variable printing medium having high glossiness, and recording method
- Patent number 8,845,091
- Issue date Sep 30, 2014
- Ricoh Company, Ltd.
- Tohru Ohshima
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Inkjet recording ink containing fluorine based surfactant, inkjet r...
- Patent number 8,752,948
- Issue date Jun 17, 2014
- Ricoh Company, Ltd.
- Takashi Tamai
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Ink for inkjet recording, inkjet recording method using the same, i...
- Patent number 8,746,869
- Issue date Jun 10, 2014
- Ricoh Company, Ltd.
- Akihiko Matsuyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Inkjet recording ink, inkjet recording inkset, ink cartridge, inkje...
- Patent number 8,651,650
- Issue date Feb 18, 2014
- Ricoh Company, Ltd.
- Akihiko Matsuyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Inkjet recording ink, ink cartridge, inkjet recording apparatus, an...
- Patent number 8,608,306
- Issue date Dec 17, 2013
- Ricoh Company, Ltd.
- Mariko Kojima
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Recording ink, recording ink set, records, ink cartridge, recording...
- Patent number 8,586,647
- Issue date Nov 19, 2013
- Ricoh Company, Ltd.
- Mariko Kojima
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink for inkjet recording, ink set for inkjet recording, ink media s...
- Patent number 8,580,159
- Issue date Nov 12, 2013
- Ricoh Company, Ltd.
- Michihiko Namba
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink for recording, and ink cartridge, ink recorded matter, inkjet r...
- Patent number 8,556,405
- Issue date Oct 15, 2013
- Ricoh Company, Ltd.
- Hisashi Habashi
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Ink-jet recording ink, ink-jet recording ink set, ink-jet recording...
- Patent number 8,444,755
- Issue date May 21, 2013
- Ricoh Company, Ltd.
- Michihiko Namba
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink set, ink cartridge, inkjet recording method, and inkjet recordi...
- Patent number 8,435,339
- Issue date May 7, 2013
- Ricoh Company, Ltd.
- Masayuki Koyano
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Inkjet medium, ink and inkjet recording method
- Patent number 8,425,031
- Issue date Apr 23, 2013
- Ricoh Company, Ltd.
- Tohru Ohshima
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Inkjet recording medium and inkjet recording method
- Patent number 8,399,076
- Issue date Mar 19, 2013
- Nippon Paper Industries Co., Ltd.
- Taichi Watanabe
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Pigment dispersion, recording ink, ink cartridge, ink-jet recording...
- Patent number 8,383,700
- Issue date Feb 26, 2013
- Ricoh Company, Ltd.
- Hiroshi Goto
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Recording ink, recording medium, ink media set, ink recorded matter...
- Patent number 8,337,607
- Issue date Dec 25, 2012
- Ricoh Company, Ltd.
- Naoya Morohoshi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Recording ink as well as ink media set, ink cartridge, ink recorded...
- Patent number 8,328,343
- Issue date Dec 11, 2012
- Ricoh Company, Ltd.
- Tamotsu Aruga
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Inkjet recording method, inkjet recording medium, and aqueous ink
- Patent number 8,322,839
- Issue date Dec 4, 2012
- Ricoh Company, Ltd.
- Tohru Ohshima
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Recording ink, ink cartridge, ink record, inkjet recording apparatu...
- Patent number 8,303,099
- Issue date Nov 6, 2012
- Ricoh Company, Ltd.
- Mariko Kojima
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Inkjet recording ink and recording media set, inkjet recording meth...
- Patent number 8,304,043
- Issue date Nov 6, 2012
- Ricoh Company, Ltd.
- Hidefumi Nagashima
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink for inkjet recording, ink set for inkjet recording, ink media s...
- Patent number 8,252,207
- Issue date Aug 28, 2012
- Ricoh Company, Ltd.
- Michihiko Namba
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
ORGANIC COLORANT, COLORING COMPOSITION, AND INKJET INK
- Publication number 20190010331
- Publication date Jan 10, 2019
- Takuya Fujita
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
CLEANING FILLING LIQUID, CARTRIDGE, CLEANING FILLING METHOD, AND IN...
- Publication number 20160160161
- Publication date Jun 9, 2016
- Takashi TAMAI
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
INKJET INK, INK CARTRIDGE, INKJET RECORDING METHOD, INKJET RECORDIN...
- Publication number 20150307729
- Publication date Oct 29, 2015
- Hiroshi Gotou
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
AQUEOUS INK FOR INKJET, INK CARTRIDGE, AND INKJET RECORDING DEVICE
- Publication number 20150077482
- Publication date Mar 19, 2015
- RICOH COMPANY, LTD.
- Naohiro Toda
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS
- Publication number 20140192112
- Publication date Jul 10, 2014
- RICOH COMPANY, LTD.
- Hidefumi NAGASHIMA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
INKJET INK, INKJET RECORDING METHOD, AND INKJET RECORDING DEVICE
- Publication number 20140002539
- Publication date Jan 2, 2014
- Hiroshi Goto
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
CLEANING FILLING LIQUID, CARTRIDGE, CLEANING FILLING METHOD, AND IN...
- Publication number 20130194345
- Publication date Aug 1, 2013
- Takashi TAMAI
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LIQUID COMPOSITION, RECORDING METHOD, AND RECORDED MATTER
- Publication number 20130143008
- Publication date Jun 6, 2013
- Hiroshi Gotou
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
INKJET INK, INK CARTRIDGE, INKJET RECORDING METHOD, INKJET RECORDIN...
- Publication number 20130113860
- Publication date May 9, 2013
- Hiroshi Gotou
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
LIQUID COMPOSITION, RECORDING METHOD, AND RECORDED MATTER
- Publication number 20130101814
- Publication date Apr 25, 2013
- Hiroshi Gotou
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
INKJET RECORDING INK SET, INKJET RECORDING METHOD AND RECORDED MATTER
- Publication number 20120328853
- Publication date Dec 27, 2012
- Akihiko Matsuyama
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
INKJET RECORDING INK SET, INKJET RECORDING METHOD, AND RECORDED MATTER
- Publication number 20120328854
- Publication date Dec 27, 2012
- Akihiko Matsuyama
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
INK FOR INKJET RECORDING, INK SET FOR INKJET RECORDING, INK MEDIA S...
- Publication number 20120320133
- Publication date Dec 20, 2012
- Michihiko Namba
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
PIGMENT DISPERSION, RECORDING INK, INK CARTRIDGE, INK-JET RECORDING...
- Publication number 20120293582
- Publication date Nov 22, 2012
- Hiroshi Goto
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
INK FOR INKJET RECORDING, INKJET RECORDING METHOD USING THE SAME, I...
- Publication number 20120098883
- Publication date Apr 26, 2012
- Akihiko Matsuyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
INKJET RECORDING INK, INK CARTRIDGE, INKJET RECORDING APPARATUS, AN...
- Publication number 20110316947
- Publication date Dec 29, 2011
- Mariko Kojima
- B82 - NANO-TECHNOLOGY
Information Patent Application
INK FOR RECORDING, AND INK CARTRIDGE, INK RECORDED MATTER, INKJET R...
- Publication number 20110300353
- Publication date Dec 8, 2011
- Hisashi HABASHI
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
INKJET RECORDING INK CONTAINING FLUORINE BASED SURFACTANT, INKJET R...
- Publication number 20110216123
- Publication date Sep 8, 2011
- Takashi TAMAI
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
INKJET RECORDING INK, INKJET RECORDING INKSET, INK CARTRIDGE, INKJE...
- Publication number 20110205288
- Publication date Aug 25, 2011
- Akihiko Matsuyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
RECORDING INK AS WELL AS INK MEDIA SET, INK CARTRIDGE, INK RECORDED...
- Publication number 20110057981
- Publication date Mar 10, 2011
- Tamotsu Aruga
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
IMAGE FORMING METHOD AND IMAGE FORMED RECORD
- Publication number 20100295891
- Publication date Nov 25, 2010
- Hiroshi Goto
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
INK-JET RECORDING INK, INK-JET RECORDING INK SET, INK-JET RECORDING...
- Publication number 20100279035
- Publication date Nov 4, 2010
- Michihiko Namba
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
INKJET RECORDING MEDIUM AND INKJET RECORDING METHOD
- Publication number 20100277541
- Publication date Nov 4, 2010
- Nippon Paper Industries Co., Ltd.
- Taichi Watanabe
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
RECORDING INK, INK CARTRIDGE, INK RECORD, INKJET RECORDING APPARATU...
- Publication number 20100271435
- Publication date Oct 28, 2010
- Mariko KOJIMA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
INK, INK CARTRIDGE, INK JET RECORDING APPARATUS, AND INK JET RECORD...
- Publication number 20100265292
- Publication date Oct 21, 2010
- Tohru Ohshima
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
INK-JET RECORDING METHOD, INK, INK CARTRIDGE, RECORDING APPARATUS,...
- Publication number 20100245416
- Publication date Sep 30, 2010
- Tohru Ohshima
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
RECORDING INK, RECORDING MEDIUM, INK MEDIA SET, INK RECORDED MATTER...
- Publication number 20100215855
- Publication date Aug 26, 2010
- Naoya Morohoshi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
INKJET RECORDING METHOD, INKJET RECORDING MEDIUM, AND AQUEOUS INK
- Publication number 20100209611
- Publication date Aug 19, 2010
- Tohru Ohshima
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
IMAGE RECORDING METHOD
- Publication number 20100194837
- Publication date Aug 5, 2010
- Tohru OHSHIMA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
INK-JET RECORDING METHOD, INK-JET RECORDING APPARATUS AND RECORDED...
- Publication number 20100196673
- Publication date Aug 5, 2010
- Hidefumi Nagashima
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Kiyofumi NAGAI

Person

Patents Grantslast 30 patents

Organic colorant, coloring composition, and inkjet ink

Cleaning filling liquid, cartridge, cleaning filling method, and in...

Inkjet ink, ink cartridge, inkjet recording method, inkjet recordin...

Aqueous ink for inkjet, ink cartridge, and inkjet recording device

Inkjet ink, ink cartridge, inkjet recording method, inkjet recordin...

Liquid composition, recording method, and recorded matter

Inkjet recording ink set, inkjet recording method, and recorded matter

Inkjet ink, inkjet recording method, and inkjet recording device

Liquid composition, recording method, and recorded matter

Image forming method and image forming apparatus

Image forming method and image formed record

Variable printing medium having high glossiness, and recording method

Inkjet recording ink containing fluorine based surfactant, inkjet r...

Ink for inkjet recording, inkjet recording method using the same, i...

Inkjet recording ink, inkjet recording inkset, ink cartridge, inkje...

Inkjet recording ink, ink cartridge, inkjet recording apparatus, an...

Recording ink, recording ink set, records, ink cartridge, recording...

Ink for inkjet recording, ink set for inkjet recording, ink media s...

Ink for recording, and ink cartridge, ink recorded matter, inkjet r...

Ink-jet recording ink, ink-jet recording ink set, ink-jet recording...

Ink set, ink cartridge, inkjet recording method, and inkjet recordi...

Inkjet medium, ink and inkjet recording method

Inkjet recording medium and inkjet recording method

Pigment dispersion, recording ink, ink cartridge, ink-jet recording...

Recording ink, recording medium, ink media set, ink recorded matter...

Recording ink as well as ink media set, ink cartridge, ink recorded...

Inkjet recording method, inkjet recording medium, and aqueous ink

Recording ink, ink cartridge, ink record, inkjet recording apparatu...

Inkjet recording ink and recording media set, inkjet recording meth...

Ink for inkjet recording, ink set for inkjet recording, ink media s...

Patents Applicationslast 30 patents

ORGANIC COLORANT, COLORING COMPOSITION, AND INKJET INK

CLEANING FILLING LIQUID, CARTRIDGE, CLEANING FILLING METHOD, AND IN...

INKJET INK, INK CARTRIDGE, INKJET RECORDING METHOD, INKJET RECORDIN...

AQUEOUS INK FOR INKJET, INK CARTRIDGE, AND INKJET RECORDING DEVICE

IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS

INKJET INK, INKJET RECORDING METHOD, AND INKJET RECORDING DEVICE

CLEANING FILLING LIQUID, CARTRIDGE, CLEANING FILLING METHOD, AND IN...

LIQUID COMPOSITION, RECORDING METHOD, AND RECORDED MATTER

INKJET INK, INK CARTRIDGE, INKJET RECORDING METHOD, INKJET RECORDIN...

LIQUID COMPOSITION, RECORDING METHOD, AND RECORDED MATTER

INKJET RECORDING INK SET, INKJET RECORDING METHOD AND RECORDED MATTER

INKJET RECORDING INK SET, INKJET RECORDING METHOD, AND RECORDED MATTER

INK FOR INKJET RECORDING, INK SET FOR INKJET RECORDING, INK MEDIA S...

PIGMENT DISPERSION, RECORDING INK, INK CARTRIDGE, INK-JET RECORDING...

INK FOR INKJET RECORDING, INKJET RECORDING METHOD USING THE SAME, I...

INKJET RECORDING INK, INK CARTRIDGE, INKJET RECORDING APPARATUS, AN...

INK FOR RECORDING, AND INK CARTRIDGE, INK RECORDED MATTER, INKJET R...

INKJET RECORDING INK CONTAINING FLUORINE BASED SURFACTANT, INKJET R...

INKJET RECORDING INK, INKJET RECORDING INKSET, INK CARTRIDGE, INKJE...

RECORDING INK AS WELL AS INK MEDIA SET, INK CARTRIDGE, INK RECORDED...

IMAGE FORMING METHOD AND IMAGE FORMED RECORD

INK-JET RECORDING INK, INK-JET RECORDING INK SET, INK-JET RECORDING...

INKJET RECORDING MEDIUM AND INKJET RECORDING METHOD

RECORDING INK, INK CARTRIDGE, INK RECORD, INKJET RECORDING APPARATU...

INK, INK CARTRIDGE, INK JET RECORDING APPARATUS, AND INK JET RECORD...

INK-JET RECORDING METHOD, INK, INK CARTRIDGE, RECORDING APPARATUS,...

RECORDING INK, RECORDING MEDIUM, INK MEDIA SET, INK RECORDED MATTER...

INKJET RECORDING METHOD, INKJET RECORDING MEDIUM, AND AQUEOUS INK

IMAGE RECORDING METHOD

INK-JET RECORDING METHOD, INK-JET RECORDING APPARATUS AND RECORDED...