Koichi Kawasumi

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Liquid crystal device and manufacturing method and apparatus therefor
- Patent number 5,978,065
- Issue date Nov 2, 1999
- Sony Corporation
- Koichi Kawasumi
- G02 - OPTICS
Information Patent Grant
Printing method and a printing apparatus for carrying out the same
- Patent number 5,592,208
- Issue date Jan 7, 1997
- Sony Corporation
- Kenji Shinozaki
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Picture recording method using a dispersant having coloring agent p...
- Patent number 5,424,163
- Issue date Jun 13, 1995
- Sony Corporation
- Hiroshi Tokunaga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer for electrostatic electrophotography
- Patent number 5,374,495
- Issue date Dec 20, 1994
- Sony Corporation
- Masafumi Ata
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Electrophotographic process using melted developer
- Patent number 5,229,235
- Issue date Jul 20, 1993
- Sony Corporation
- Haruo Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Wavelength multiplexed optical recording material
- Patent number 5,204,215
- Issue date Apr 20, 1993
- Agency of Industrial Science and Technology
- Noriyuki Kishii
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Wavelength multiplexed optical recording material
- Patent number 5,153,099
- Issue date Oct 6, 1992
- Director-General, Agency of Industrial Science & Technology
- Noriyuki Kishii
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Image forming material with developer and photosensitive base on wh...
- Patent number 5,116,714
- Issue date May 26, 1992
- Sony Corporation
- Haruo Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic apparatus using developer that is changed from...
- Patent number 5,075,735
- Issue date Dec 24, 1991
- Sony Corporation
- Takao Tsuchiya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electronic photography apparatus
- Patent number 5,073,798
- Issue date Dec 17, 1991
- Sony Corporation
- Akira Shirakura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photochromic photosensitive composition
- Patent number 4,485,168
- Issue date Nov 27, 1984
- Sony Corporation
- Seiichi Arakawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Koichi Kawasumi

Person

Patents Grantslast 30 patents

Liquid crystal device and manufacturing method and apparatus therefor

Printing method and a printing apparatus for carrying out the same

Picture recording method using a dispersant having coloring agent p...

Developer for electrostatic electrophotography

Electrophotographic process using melted developer

Wavelength multiplexed optical recording material

Wavelength multiplexed optical recording material

Image forming material with developer and photosensitive base on wh...

Electrophotographic apparatus using developer that is changed from...

Electronic photography apparatus

Photochromic photosensitive composition