Tomohiro Oikawa

Person

Funabashi-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus
- Patent number 6,606,471
- Issue date Aug 12, 2003
- Sharp Kabushiki Kaisha
- Yukikazu Kamei
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus including transfer device outer displacive...
- Patent number 6,512,912
- Issue date Jan 28, 2003
- Sharp Kabushiki Kaisha
- Yukikazu Kamei
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Transfer apparatus
- Patent number 6,330,408
- Issue date Dec 11, 2001
- Sharp Kabushiki Kaisha
- Shirou Wakahara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 6,259,869
- Issue date Jul 10, 2001
- Sharp Kabushiki Kaisha
- Takuya Abe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having transfer drum with transfer paper ch...
- Patent number 6,233,422
- Issue date May 15, 2001
- Sharp Kabushiki Kaisha
- Takuya Abe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with nip time changing device
- Patent number 6,169,862
- Issue date Jan 2, 2001
- Sharp Kabushiki Kaisha
- Takuya Abe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having transfer roller with charge-removing...
- Patent number 6,118,954
- Issue date Sep 12, 2000
- Sharp Kabushiki Kaisha
- Takuya Abe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having transfer drum with specific construc...
- Patent number 6,081,686
- Issue date Jun 27, 2000
- Sharp Kabushiki Kaisha
- Takuya Abe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image-forming apparatus
- Patent number 6,078,772
- Issue date Jun 20, 2000
- Sharp Kabushiki Kaisha
- Toshihiko Takaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 6,026,256
- Issue date Feb 15, 2000
- Sharp Kabushiki Kaisha
- Takuya Abe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image-forming device and method of manufacturing dielectric sheet
- Patent number 5,878,314
- Issue date Mar 2, 1999
- Sharp Kabushiki Kaisha
- Toshihiko Takaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having variable transfer and attraction vol...
- Patent number 5,799,225
- Issue date Aug 25, 1998
- Sharp Kabushiki Kaisha
- Takuya Abe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner-image fixing device with roller-temperature limitation
- Patent number 5,708,920
- Issue date Jan 13, 1998
- Sharp Kabushiki Kaisha
- Hideki Ohnishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with a light directing device for varying d...
- Patent number 5,694,161
- Issue date Dec 2, 1997
- Sharp Kabushiki Kaisha
- Tomohiro Oikawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Image forming apparatus
- Patent number 5,532,796
- Issue date Jul 2, 1996
- Sharp Kabushiki Kaisha
- Shiro Narikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Printer varying pixel-shape to reduce jaggedness
- Patent number 5,493,410
- Issue date Feb 20, 1996
- Sharp Kabushiki Kaisha
- Tomohiro Oikawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electrophotographic printing machine
- Patent number 5,298,945
- Issue date Mar 29, 1994
- Sharp Kabushiki Kaisha
- Takasumi Wada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Image forming apparatus
- Publication number 20020039499
- Publication date Apr 4, 2002
- Yukikazu Kamei
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus with a transfer device
- Publication number 20020028098
- Publication date Mar 7, 2002
- Yukikazu Kamei
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Tomohiro Oikawa

Person

Patents Grantslast 30 patents

Image forming apparatus

Image forming apparatus including transfer device outer displacive...

Transfer apparatus

Image forming apparatus

Image forming apparatus having transfer drum with transfer paper ch...

Image forming apparatus with nip time changing device

Image forming apparatus having transfer roller with charge-removing...

Image forming apparatus having transfer drum with specific construc...

Image-forming apparatus

Image forming apparatus

Image-forming device and method of manufacturing dielectric sheet

Image forming apparatus having variable transfer and attraction vol...

Toner-image fixing device with roller-temperature limitation

Image forming apparatus with a light directing device for varying d...

Image forming apparatus

Printer varying pixel-shape to reduce jaggedness

Electrophotographic printing machine

Patents Applicationslast 30 patents

Image forming apparatus

Image forming apparatus with a transfer device