KS

Kiyoshi Sakai

Canon: 41 patents #1,035 of 19,416Top 6%
Ricoh Company: 35 patents #475 of 9,818Top 5%
Fujitsu Limited: 23 patents #1,155 of 24,456Top 5%
CC Copyer Co.: 2 patents #19 of 51Top 40%
JN Jnc: 2 patents #140 of 413Top 35%
SC Sanyo Electric Co.: 2 patents #2,557 of 6,347Top 45%
ML Mitsubishi Petrochemical Company Limited: 1 patents #291 of 670Top 45%
NC Nippon Polyurethane Industry Co.: 1 patents #33 of 76Top 45%
OM Omron: 1 patents #1,808 of 3,089Top 60%
KU Kyushu University, National University: 1 patents #221 of 767Top 30%
SC Sankyo Holdings Co.: 1 patents #423 of 700Top 65%
HC Hodogaya Chemical Co.: 1 patents #201 of 359Top 60%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
TO Tosoh: 1 patents #576 of 1,042Top 60%
LI Lintec: 1 patents #282 of 514Top 55%
📍 Miyazaki, JP: #2 of 531 inventorsTop 1%
Overall (All Time): #11,526 of 4,157,543Top 1%
112
Patents All Time

Issued Patents All Time

Showing 51–75 of 112 patents

Patent #TitleCo-InventorsDate
5292603 Image holding member and apparatus which uses the same Naoto Fujimura, Seiko Nakano 1994-03-08
5283142 Image-holding member, and electrophotographic apparatus, apparatus unit, and facsimile machine employing the same Shinya Mayama, Naoto Fujimura, Noriko Ohtani, Katsumi Aoki, Noriyoshi Ogawa +1 more 1994-02-01
5272508 Electrophotographic photosensitive member and apparatus incorporating the same Teigo Sakakibara, Noriko Ohtani, Naoto Fujimura 1993-12-21
5272029 Image-bearing member and apparatus including same Naoto Fujimura, Seiko Nakano 1993-12-21
5258252 Image-bearing member having a surface layer of a high-melting point polyester resin and cured resin Naoto Fujimura, Seikoh Nakano 1993-11-02
5254423 Electrophotographic photosensitive member, and electrophotographic apparatus, device unit and facsimile machine having the photosensitive member Shinya Mayama, Naoto Fujimura, Toshiyuki Yoshihara, Hideki Anayama, Hideyuki Ainoya +1 more 1993-10-19
5250990 Image-bearing member for electrophotography and blade cleaning method Naoto Fujimura, Teigo Sakakibara, Junichi Kishi 1993-10-05
5235618 Video signal coding apparatus, coding method used in the video signal coding apparatus and video signal coding transmission system having the video signal coding apparatus Takashi Itoh, Kiichi Matsuda 1993-08-10
5191446 Image data transmission system Takashi Hamano, Kiichi Matsuda 1993-03-02
5190837 Image holder member having resin layer of metal-coated fine resin particles and binder resin Hisami Tanaka, Naoto Fujimura, Teigo Sakakibara, Takashi Koyama 1993-03-02
5148639 Surface roughening method for organic electrophotographic photosensitive member Teigo Sakakibara, Harumi Sakou, Shoji Amamiya 1992-09-22
5114814 Photosensitive member for electrophotography, image forming method and electrophotographic apparatus using the same Harumi Sakoh, Shoji Amamiya 1992-05-19
5083504 Drink extraction apparatus Koji Koga, Satoshi Wakui 1992-01-28
5079117 Electrophotographic photosensitive member with electrical conductor containing polyether-polyurethane layer Takashi Koyama, Hideki Anayama, Yuichi Hashimoto, Noriko Hirayama, Teigo Sakakibara +2 more 1992-01-07
5002204 Drink supply system having sterilization means 1991-03-26
4990625 Process for synthesis of N,N-disubstituted hydrazone Tetsuo Arita, Minoru Mabuchi, Shoji Umehara 1991-02-05
4925763 Developer for electrophotography containing ionomer resin Kazuo Tsubuko, Shinichi Kuramoto 1990-05-15
4920022 Electrophotographic photosensitive member comprising aryl amine charge transport material Teigo Sakakibara, Harumi Sakoh, Shoji Amamiya 1990-04-24
4835079 Electrophotographic photosensitive member and electrophotographic process using the same Naoto Fujimura, Masami Okunuki 1989-05-30
4761359 Electrophotographic process using photoconductive cylinder of small diameter Naoto Fujimura, Junichi Kishi, Teigo Sakakibara 1988-08-02
4663259 Electrophotographic photosensitive member and image forming process using the same Naoto Fujimura, Masami Okunuki 1987-05-05
4554231 Electrophotographic photosensitive member Shozo Ishikawa, Minoru Mabuchi, Katsunori Watanabe, Makoto Kitahara 1985-11-19
4521605 Carbazole compounds and process for preparing the same Hideo Okazaki, Hiroshi Imagome, Susumu Suzuka 1985-06-04
4501808 Recording medium and process employing a photosensitive organic film Shozo Ishikawa, Tetsuo Arita, Minoru Mabuchi, Shoji Umehara 1985-02-26
4500619 Electrophotographic photosensitive member with oxadiazole containing disazo compound Shozo Ishikawa, Kazuharu Katagiri, Katsunori Watanabe, Makoto Kitahara 1985-02-19