KY

Katsuyoshi Yamakawa

Fujitsu Limited: 26 patents #960 of 24,456Top 4%
FU Fujifilm: 12 patents #754 of 4,519Top 20%
JC Japan Airlines Co.: 1 patents #3 of 35Top 9%
Overall (All Time): #83,418 of 4,157,543Top 3%
39
Patents All Time

Issued Patents All Time

Showing 26–39 of 39 patents

Patent #TitleCo-InventorsDate
5401624 Dye forming couplers and silver halide color photosensitive material containing the same Kozo Sato, Yoshio Ishii 1995-03-28
5364941 5-acyl-4,5,6,7-tetrahydrothieno (3,2-C)pyridine-2-carboxylic acid derivative and process for producing the same Kozo Sato, Takashi Suginome 1994-11-15
5362882 Pyrrolotriazole derivative and heat transfer dye providing material containing a pyrrolotriazole azomethine dye Makoto Suzuki, Yasuhiro Shimada, Koushin Matsuoka, Shigeru Yamazaki, Kozo Sato 1994-11-08
5344933 Pyrrole ring-or condensed pyrrole ring-containing azomethine dye Hisashi Mikoshiba, Kozo Sato, Koushin Matsuoka 1994-09-06
5326682 Silver halide color photographic material 1994-07-05
5296603 3-amino-5-o-chlorobenzyl-4,5,6,7-tetrahy drothieno[3,2-c]-pyridine-2-carboxylic acid compounds Kozo Sato, Takashi Suginome 1994-03-22
5260177 Silver halide color photographic light-sensitive material Kozo Aoki, Michio Ono, Shigeru Yamazaki, Kei Sakanoue, Hidetoshi Kobayashi 1993-11-09
5202224 Dye-forming coupler, a silver halide color photographic material using same, and a method for processing the silver halide color photographic material Hideaki Naruse 1993-04-13
5143824 Silver halide color photographic material containing cyan dye-forming coupler Jiro Tsukahara 1992-09-01
5120637 Silver halide color photographic light-sensitive material containing an emulsified dispersion of oleophilic fine particles obtained by dispersing a solution containing a cyan coupler and a polymer Genichi Furusawa 1992-06-09
5006660 Process for producing alkoxybenzene compound and aryloxybenzene compound 1991-04-09
4910128 Silver halide color photographic material Takayoshi Kamio, Hidetoshi Kobayashi, Isamu Itoh 1990-03-20
H42 Silver halide color photographic material Isamu Itoh, Hidetoshi Kobayashi 1986-04-01
4289074 Construction of truck for attractive type magnetically levitated vehicle Shinji Nakamura 1981-09-15