KK

Koichi Kawasumi

SO Sony: 9 patents #4,874 of 25,231Top 20%
AT Agency Of Industrial Science And Technology: 1 patents #568 of 1,778Top 35%
Overall (All Time): #473,478 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
5978065 Liquid crystal device and manufacturing method and apparatus therefor Takeshi Yamasaki, Eriko Matsui, Akio Yasuda, Yuji Shiina, Tadashi Kiyomiya +1 more 1999-11-02
5592208 Printing method and a printing apparatus for carrying out the same Kenji Shinozaki, Hideki Hirano, Nobutoshi Asai, Hidemi Tomita, Shuji Sato +2 more 1997-01-07
5424163 Picture recording method using a dispersant having coloring agent particles contained therein Hiroshi Tokunaga, Akira Shirakura, Hideki Matsuzaka, Yuichirou Ikemoto, Toshimi Fukuoka +4 more 1995-06-13
5374495 Developer for electrostatic electrophotography Masafumi Ata, Yuji Yakura, Haruo Watanabe 1994-12-20
5229235 Electrophotographic process using melted developer Haruo Watanabe, Masami Ohyama, Akio Yasuda 1993-07-20
5204215 Wavelength multiplexed optical recording material Noriyuki Kishii, Shinichiro Tamura, Nobutoshi Asai, Jenetsu Seto 1993-04-20
5153099 Wavelength multiplexed optical recording material Noriyuki Kishii, Shinichiro Tamura, Nobutoshi Asai, Junetsu Seto 1992-10-06
5116714 Image forming material with developer and photosensitive base on which an electrostatic latent image is formed Haruo Watanabe, Akio Yasuda, Takao Tsuchiya, Kiyosuke Suzuki 1992-05-26
5075735 Electrophotographic apparatus using developer that is changed from a solid to a liquid Takao Tsuchiya, Akira Shirakura, Haruo Watanabe 1991-12-24
5073798 Electronic photography apparatus Akira Shirakura, Takao Tsuchiya, Haruo Watanabe 1991-12-17
4485168 Photochromic photosensitive composition Seiichi Arakawa, Junetsu Seto 1984-11-27