Kohta Takenaka

Person

Yokohama City, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Sound absorber, electronic device with sound absorbing device, and...
- Patent number 11,495,203
- Issue date Nov 8, 2022
- Ricoh Company, Ltd.
- Masahiro Ishida
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Housing, electronic device with housing, and image forming apparatu...
- Patent number 11,169,482
- Issue date Nov 9, 2021
- Ricoh Company, Ltd.
- Masahiro Ishida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Sound absorber, electronic device with sound absorbing device, and...
- Patent number 10,540,953
- Issue date Jan 21, 2020
- Ricoh Company, Ltd.
- Masahiro Ishida
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Housing, electronic device with housing, and image forming apparatu...
- Patent number 10,444,695
- Issue date Oct 15, 2019
- Ricoh Company, Ltd.
- Masahiro Ishida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus, foreign object detecting system, and metho...
- Patent number 10,078,301
- Issue date Sep 18, 2018
- Ricoh Company, Ltd.
- Ruki Midorikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus, foreign object detecting system, and metho...
- Patent number 10,048,628
- Issue date Aug 14, 2018
- Ricoh Company, Ltd.
- Ruki Midorikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Mount board tray and electronic device with mount board tray
- Patent number 9,955,595
- Issue date Apr 24, 2018
- Ricoh Company, Ltd.
- Shogo Terakawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having a sound absorber
- Patent number 9,547,274
- Issue date Jan 17, 2017
- Ricoh Company, Limited
- Hiroki Ishimitsu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Drawer unit, and image forming apparatus using the drawer unit
- Patent number 9,533,846
- Issue date Jan 3, 2017
- Ricoh Company, Ltd.
- Hiroshi Ishii
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 9,527,692
- Issue date Dec 27, 2016
- Ricoh Company, Ltd.
- Keiichi Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with locking drawer unit
- Patent number 9,353,553
- Issue date May 31, 2016
- Ricoh Company, Limited
- Yusuke Funayama
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Motherboard mounting structure, image forming apparatus and method...
- Patent number 9,316,990
- Issue date Apr 19, 2016
- Ricoh Company, Ltd.
- Kazuhiro Takabayashi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Image forming apparatus
- Patent number 9,298,155
- Issue date Mar 29, 2016
- Ricoh Company, Limited
- Hiroki Ishimitsu
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Image forming apparatus including drawer with variable length cable...
- Patent number 9,188,946
- Issue date Nov 17, 2015
- Ricoh Company, Ltd.
- Tetsuji Nishikawa
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Image forming apparatus having a drawer unit with a paper-feeding c...
- Patent number 9,176,462
- Issue date Nov 3, 2015
- Ricoh Company, Limited
- Yoshihide Ohta
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having drawer unit
- Patent number 9,163,429
- Issue date Oct 20, 2015
- Ricoh Company, Limited
- Kohta Takenaka
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Fixing device and image forming apparatus using same
- Patent number 8,929,752
- Issue date Jan 6, 2015
- Ricoh Company, Limited
- Yoshihide Ohta
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device, image forming apparatus incorporating same, and meth...
- Patent number 8,428,480
- Issue date Apr 23, 2013
- Ricoh Company, Ltd.
- Kohta Takenaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus using same having a secon...
- Patent number 8,346,106
- Issue date Jan 1, 2013
- Ricoh Company, Limited
- Kohta Takenaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Interlock switch and image forming apparatus using the same
- Patent number 8,334,469
- Issue date Dec 18, 2012
- Ricoh Company, Limited
- Kohta Takenaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Toner fixing device with light control mirrors and image forming ap...
- Patent number 8,195,058
- Issue date Jun 5, 2012
- Ricoh Company, Ltd.
- Kohta Takenaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging brush unit, charging device, and image forming apparatus
- Patent number 7,907,869
- Issue date Mar 15, 2011
- Ricoh Company Limited
- Kohta Takenaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming device and unit position adjustment method
- Patent number 7,454,157
- Issue date Nov 18, 2008
- Ricoh Company, Ltd.
- Masahiko Yamada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Optical writing apparatus and image forming apparatus
- Patent number 7,436,425
- Issue date Oct 14, 2008
- Ricoh Company, Ltd.
- Kozo Yamazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Fixing device and image forming device
- Patent number 7,013,108
- Issue date Mar 14, 2006
- Ricoh Company, Ltd.
- Kohta Takenaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming device and communication device
- Patent number 6,907,218
- Issue date Jun 14, 2005
- Ricoh Company, Ltd.
- Hidehiko Fujiwara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image fixing device and image forming device having low friction an...
- Patent number 6,801,744
- Issue date Oct 5, 2004
- Ricoh Company, Limited
- Hidehiko Fujiwara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming device
- Patent number 6,788,916
- Issue date Sep 7, 2004
- Ricoh Company, Ltd.
- Kohta Takenaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing and image forming devices comprising thin heated sheets
- Patent number 6,731,900
- Issue date May 4, 2004
- Ricoh Company, Ltd.
- Kohta Takenaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming device
- Patent number 6,731,902
- Issue date May 4, 2004
- Ricoh Company, Ltd.
- Kohta Takenaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
HOUSING, ELECTRONIC DEVICE WITH HOUSING, AND IMAGE FORMING APPARATU...
- Publication number 20210109476
- Publication date Apr 15, 2021
- RICOH COMPANY, LTD.
- Masahiro ISHIDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
SOUND ABSORBER, ELECTRONIC DEVICE WITH SOUND ABSORBING DEVICE, AND...
- Publication number 20200105237
- Publication date Apr 2, 2020
- RICOH COMPANY, LTD.
- Masahiro ISHIDA
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
HOUSING, ELECTRONIC DEVICE WITH HOUSING, AND IMAGE FORMING APPARATU...
- Publication number 20190384218
- Publication date Dec 19, 2019
- Ricoh Company,Ltd.
- Masahiro ISHIDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS, FOREIGN OBJECT DETECTING SYSTEM, AND METHO...
- Publication number 20170235264
- Publication date Aug 17, 2017
- RICOH COMPANY, LTD.
- Ruki Midorikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
HOUSING, ELECTRONIC DEVICE WITH HOUSING, AND IMAGE FORMING APPARATU...
- Publication number 20170219990
- Publication date Aug 3, 2017
- RICOH COMPANY, LTD.
- Masahiro ISHIDA
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
SOUND ABSORBER, ELECTRONIC DEVICE WITH SOUND ABSORBING DEVICE, AND...
- Publication number 20170221469
- Publication date Aug 3, 2017
- RICOH COMPANY, LTD.
- Masahiro ISHIDA
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20170017190
- Publication date Jan 19, 2017
- RICOH COMPANY, LTD.
- HIDEHIKO MAEDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
MOUNT BOARD TRAY AND ELECTRONIC DEVICE WITH MOUNT BOARD TRAY
- Publication number 20160381815
- Publication date Dec 29, 2016
- RICOH COMPANY, LTD.
- Shogo TERAKAWA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
DRAWER UNIT, AND IMAGE FORMING APPARATUS USING THE DRAWER UNIT
- Publication number 20160221770
- Publication date Aug 4, 2016
- Ricoh Company, Ltd.
- Hiroshi ISHII
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20160161905
- Publication date Jun 9, 2016
- Richo Company, Ltd.
- Hiroki ISHIMITSU
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20160033928
- Publication date Feb 4, 2016
- RICOH COMPANY, LIMITED
- Hiroki ISHIMITSU
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20150329305
- Publication date Nov 19, 2015
- RICOH COMPANY, LTD.
- Keiichi SHIMIZU
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20140169828
- Publication date Jun 19, 2014
- RICOH COMPANY, LIMITED
- Yoshihide OHTA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20140167580
- Publication date Jun 19, 2014
- RICOH COMPANY, LIMITED
- Yusuke FUNAYAMA
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20140167587
- Publication date Jun 19, 2014
- RICOH COMPANY, LIMITED
- Kohta TAKENAKA
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20140055016
- Publication date Feb 27, 2014
- RICOH COMPANY, LTD.
- Tetsuji NISHIKAWA
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
MOTHERBOARD MOUNTING STRUCTURE AND IMAGE FORMING APPARATUS WITH SAME
- Publication number 20130236210
- Publication date Sep 12, 2013
- Kazuhiro TAKABAYASHI
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Fixing device, image forming apparatus incorporating same, and meth...
- Publication number 20110116822
- Publication date May 19, 2011
- RICOH COMPANY, LTD.
- Kohta Takenaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Interlock switch and image forming apparatus using the same
- Publication number 20110056811
- Publication date Mar 10, 2011
- Ricoh Company, Limited
- Kohta Takenaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS USING SAME
- Publication number 20110026961
- Publication date Feb 3, 2011
- Yoshihide OHTA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS USING SAME
- Publication number 20110020018
- Publication date Jan 27, 2011
- Kohta TAKENAKA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Fixing device and image forming apparatus incorporating same
- Publication number 20100232822
- Publication date Sep 16, 2010
- Ricoh Company, Ltd.
- Kohta Takenaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CHARGING BRUSH UNIT, CHARGING DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20080304866
- Publication date Dec 11, 2008
- Kohta TAKENAKA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS
- Publication number 20070196152
- Publication date Aug 23, 2007
- Keisuke Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming device and unit position adjustment method
- Publication number 20070059036
- Publication date Mar 15, 2007
- Masahiko Yamada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Optical writing apparatus and image forming apparatus
- Publication number 20060055769
- Publication date Mar 16, 2006
- Kozo Yamazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Fixing device and image forming device
- Publication number 20040240914
- Publication date Dec 2, 2004
- Kohta Takenaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image fixing device and image forming device
- Publication number 20030103786
- Publication date Jun 5, 2003
- Hidehiko Fujiwara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Fixing device and image forming device
- Publication number 20030099493
- Publication date May 29, 2003
- Kohta Takenaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming device and communication device
- Publication number 20030063933
- Publication date Apr 3, 2003
- Hidehiko Fujiwara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Kohta Takenaka

Person

Patents Grantslast 30 patents

Sound absorber, electronic device with sound absorbing device, and...

Housing, electronic device with housing, and image forming apparatu...

Sound absorber, electronic device with sound absorbing device, and...

Housing, electronic device with housing, and image forming apparatu...

Image forming apparatus, foreign object detecting system, and metho...

Image forming apparatus, foreign object detecting system, and metho...

Mount board tray and electronic device with mount board tray

Image forming apparatus having a sound absorber

Drawer unit, and image forming apparatus using the drawer unit

Image forming apparatus

Image forming apparatus with locking drawer unit

Motherboard mounting structure, image forming apparatus and method...

Image forming apparatus

Image forming apparatus including drawer with variable length cable...

Image forming apparatus having a drawer unit with a paper-feeding c...

Image forming apparatus having drawer unit

Fixing device and image forming apparatus using same

Fixing device, image forming apparatus incorporating same, and meth...

Fixing device and image forming apparatus using same having a secon...

Interlock switch and image forming apparatus using the same

Toner fixing device with light control mirrors and image forming ap...

Charging brush unit, charging device, and image forming apparatus

Image forming device and unit position adjustment method

Optical writing apparatus and image forming apparatus

Fixing device and image forming device

Image forming device and communication device

Image fixing device and image forming device having low friction an...

Fixing device and image forming device

Fixing and image forming devices comprising thin heated sheets

Fixing device and image forming device

Patents Applicationslast 30 patents

HOUSING, ELECTRONIC DEVICE WITH HOUSING, AND IMAGE FORMING APPARATU...

SOUND ABSORBER, ELECTRONIC DEVICE WITH SOUND ABSORBING DEVICE, AND...

HOUSING, ELECTRONIC DEVICE WITH HOUSING, AND IMAGE FORMING APPARATU...

IMAGE FORMING APPARATUS, FOREIGN OBJECT DETECTING SYSTEM, AND METHO...

HOUSING, ELECTRONIC DEVICE WITH HOUSING, AND IMAGE FORMING APPARATU...

SOUND ABSORBER, ELECTRONIC DEVICE WITH SOUND ABSORBING DEVICE, AND...

IMAGE FORMING APPARATUS

MOUNT BOARD TRAY AND ELECTRONIC DEVICE WITH MOUNT BOARD TRAY

DRAWER UNIT, AND IMAGE FORMING APPARATUS USING THE DRAWER UNIT

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

MOTHERBOARD MOUNTING STRUCTURE AND IMAGE FORMING APPARATUS WITH SAME

Fixing device, image forming apparatus incorporating same, and meth...

Interlock switch and image forming apparatus using the same

FIXING DEVICE AND IMAGE FORMING APPARATUS USING SAME

FIXING DEVICE AND IMAGE FORMING APPARATUS USING SAME

Fixing device and image forming apparatus incorporating same

CHARGING BRUSH UNIT, CHARGING DEVICE, AND IMAGE FORMING APPARATUS

SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS

Image forming device and unit position adjustment method

Optical writing apparatus and image forming apparatus

Fixing device and image forming device

Image fixing device and image forming device

Fixing device and image forming device

Image forming device and communication device