Kiyoshi Sakai

Person

Ohta-ku, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus
- Patent number 7,280,787
- Issue date Oct 9, 2007
- Ricoh Company, Ltd.
- Yasuyuki Shinkai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
System for facilitating teaching and learning
- Patent number 7,092,669
- Issue date Aug 15, 2006
- Ricoh Company, Ltd.
- Kiyoshi Sakai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Polymeric compound comprising glycopolymer and a method for decompo...
- Patent number 6,900,295
- Issue date May 31, 2005
- Canon Kabushiki Kaisha
- Hiroyoshi Kishi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Image forming apparatus having a supporting device for supporting i...
- Patent number 6,725,003
- Issue date Apr 20, 2004
- Ricoh Company, Ltd.
- Yasuyuki Shinkai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Recycling system and recycling method
- Patent number 6,529,788
- Issue date Mar 4, 2003
- Ricoh Company, Ltd.
- Tatsuo Tani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Polymeric compound comprising glycopolymer and a method for decompo...
- Patent number 6,316,606
- Issue date Nov 13, 2001
- Canon Kabusiki Kaisha
- Hiroyoshi Kishi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Image forming apparatus and process cartridge having exposure devic...
- Patent number 5,818,489
- Issue date Oct 6, 1998
- Canon Kabushiki Kaisha
- Kazuo Yoshinaga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Transparent thermal recording medium
- Patent number 5,741,752
- Issue date Apr 21, 1998
- Ricoh Company, Ltd.
- Hiroshi Goto
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Transparent thermal recording medium
- Patent number 5,739,077
- Issue date Apr 14, 1998
- Ricoh Company, Ltd.
- Hiroshi Goto
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Polyamide, electrophotographic photosensitive member employing the...
- Patent number 5,663,283
- Issue date Sep 2, 1997
- Canon Kabushiki Kaisha
- Teigo Sakakibara
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Image transfer medium carrier member and image forming apparatus in...
- Patent number 5,629,094
- Issue date May 13, 1997
- Canon Kabushiki Kaisha
- Teigo Sakakibara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Recording medium, method of formimg image using the same, and metho...
- Patent number 5,607,751
- Issue date Mar 4, 1997
- Canon Kabushiki Kaisha
- Teigo Sakakibara
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Transfer material carrying member and image forming apparatus
- Patent number 5,601,913
- Issue date Feb 11, 1997
- Canon Kabushiki Kaisha
- Noriko Ohtani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Transfer material carrying member and image forming apparatus makin...
- Patent number 5,534,581
- Issue date Jul 9, 1996
- Canon Kabushiki Kaisha
- Noriko Ohtani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic with polycarbonate having charge transporting g...
- Patent number 5,486,439
- Issue date Jan 23, 1996
- Canon Kabushiki Kaisha
- Teigo Sakakibara
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyamide, electrophotographic photosensitive member employing the...
- Patent number 5,419,993
- Issue date May 30, 1995
- Canon Kabushiki Kaisha
- Teigo Sakakibara
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Electrophotographic photosensitive member, and electrophotographic...
- Patent number 5,418,099
- Issue date May 23, 1995
- Canon Kabushiki Kaisha
- Shinya Mayama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Ozone filter used in electrophotographic apparatus including cataly...
- Patent number 5,371,577
- Issue date Dec 6, 1994
- Canon Kabushiki Kaisha
- Naoto Fujimura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image-bearing member and apparatus including same
- Patent number 5,352,552
- Issue date Oct 4, 1994
- Canon Kabushiki Kaisha
- Akio Maruyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive member and apparatus using same
- Patent number 5,320,922
- Issue date Jun 14, 1994
- Canon Kabushiki Kaisha
- Shinya Mayama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image holding member and apparatus which uses the same
- Patent number 5,292,603
- Issue date Mar 8, 1994
- Canon Kabushiki Kaisha
- Kiyoshi Sakai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image-holding member, and electrophotographic apparatus, apparatus...
- Patent number 5,283,142
- Issue date Feb 1, 1994
- Canon Kabushiki Kaisha
- Shinya Mayama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Image-bearing member and apparatus including same
- Patent number 5,272,029
- Issue date Dec 21, 1993
- Canon Kabushiki Kaisha
- Kiyoshi Sakai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive member and apparatus incorporati...
- Patent number 5,272,508
- Issue date Dec 21, 1993
- Canon Kabushiki Kaisha
- Teigo Sakakibara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image-bearing member having a surface layer of a high-melting point...
- Patent number 5,258,252
- Issue date Nov 2, 1993
- Canon Kabushiki Kaisha
- Kiyoshi Sakai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive member, and electrophotographic...
- Patent number 5,254,423
- Issue date Oct 19, 1993
- Canon Kabushiki Kaisha
- Shinya Mayama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image-bearing member for electrophotography and blade cleaning method
- Patent number 5,250,990
- Issue date Oct 5, 1993
- Canon Kabushiki Kaisha
- Naoto Fujimura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image holder member having resin layer of metal-coated fine resin p...
- Patent number 5,190,837
- Issue date Mar 2, 1993
- Canon Kabushiki Kaisha
- Kiyoshi Sakai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Surface roughening method for organic electrophotographic photosens...
- Patent number 5,148,639
- Issue date Sep 22, 1992
- Canon Kabushiki Kaisha
- Kiyoshi Sakai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photosensitive member for electrophotography, image forming method...
- Patent number 5,114,814
- Issue date May 19, 1992
- Canon Kabushiki Kaisha
- Harumi Sakoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Image forming apparatus
- Publication number 20040067076
- Publication date Apr 8, 2004
- Yasuyuki Shinkai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Teaching/learning-method facilitating system, display terminal and...
- Publication number 20030207244
- Publication date Nov 6, 2003
- Kiyoshi Sakai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
Polymeric compound comprising glycopolymer and a method for decompo...
- Publication number 20020132918
- Publication date Sep 19, 2002
- Hiroyoshi Kishi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Image forming apparatus
- Publication number 20020044791
- Publication date Apr 18, 2002
- Yasuyuki Shinkai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Kiyoshi Sakai

Person

Patents Grantslast 30 patents

Image forming apparatus

System for facilitating teaching and learning

Polymeric compound comprising glycopolymer and a method for decompo...

Image forming apparatus having a supporting device for supporting i...

Recycling system and recycling method

Polymeric compound comprising glycopolymer and a method for decompo...

Image forming apparatus and process cartridge having exposure devic...

Transparent thermal recording medium

Transparent thermal recording medium

Polyamide, electrophotographic photosensitive member employing the...

Image transfer medium carrier member and image forming apparatus in...

Recording medium, method of formimg image using the same, and metho...

Transfer material carrying member and image forming apparatus

Transfer material carrying member and image forming apparatus makin...

Electrophotographic with polycarbonate having charge transporting g...

Polyamide, electrophotographic photosensitive member employing the...

Electrophotographic photosensitive member, and electrophotographic...

Ozone filter used in electrophotographic apparatus including cataly...

Image-bearing member and apparatus including same

Electrophotographic photosensitive member and apparatus using same

Image holding member and apparatus which uses the same

Image-holding member, and electrophotographic apparatus, apparatus...

Image-bearing member and apparatus including same

Electrophotographic photosensitive member and apparatus incorporati...

Image-bearing member having a surface layer of a high-melting point...

Electrophotographic photosensitive member, and electrophotographic...

Image-bearing member for electrophotography and blade cleaning method

Image holder member having resin layer of metal-coated fine resin p...

Surface roughening method for organic electrophotographic photosens...

Photosensitive member for electrophotography, image forming method...

Patents Applicationslast 30 patents

Image forming apparatus

Teaching/learning-method facilitating system, display terminal and...

Polymeric compound comprising glycopolymer and a method for decompo...

Image forming apparatus