YI

Youichi Ishikawa

NK Nitto Kogyo: 7 patents #3 of 53Top 6%
MM Mitsubishi Materials: 4 patents #258 of 1,543Top 20%
MI Minolta: 1 patents #729 of 1,109Top 70%
NC Nippon Kokan Co.: 1 patents #290 of 735Top 40%
OC Oriental Yeast Co.: 1 patents #45 of 160Top 30%
Overall (All Time): #389,396 of 4,157,543Top 10%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
6652433 Oil application roller for use in an image-forming apparatus Kazuhiko Serizawa 2003-11-25
6212356 Fixing apparatus Takeshi Kato 2001-04-03
RE36962 Fixing device for electrophotographic apparatus Yuichiro Higashi 2000-11-21
6137984 Toner image fixing apparatus Yuichiro Higashi, Takeshi Kato 2000-10-24
5853832 Oil application roll for electrophotograph fixation and method of fabricating the same 1998-12-29
5465146 Fixing device for electrophotographic apparatus Yuichiro Higashi 1995-11-07
D357692 Cutter insert Osamu Ichinoseki 1995-04-25
D345984 Cutter insert Osamu Ichinoseki 1994-04-12
D345985 Cutter insert Osamu Ichinoseki 1994-04-12
5282703 Indexable cutter insert Takeshi Itaba, Osamu Ichinoseki 1994-02-01
4981519 Hydraulic hardening material and method of manufacturing the same Kazuo Fukaya, Kazuyoshi Sato, Eiichiro Konishi, Yasushi Iijima, Kiyoshi Koibuchi 1991-01-01
4757347 Oil applying roller for use in an electrophotographic copying apparatus Junichi Tamaoki, Tetsuya Yamada, Sanji Inagaki, Kesaaki Kitazawa, Naotaka Nishikawa +1 more 1988-07-12
4252627 Electrical oxygen probe Minoru Ohashi, Makoto Shouda, Tamon Watabe 1981-02-24