TK

Takashi Koyama

The Yokohama Rubber Co.: 27 patents #32 of 1,136Top 3%
TO Toyota: 20 patents #1,142 of 26,838Top 5%
Canon: 19 patents #3,464 of 19,416Top 20%
SO Sony: 15 patents #2,858 of 25,231Top 15%
PA Panasonic: 11 patents #2,326 of 21,108Top 15%
SC Sz Dji Technology Co.: 8 patents #110 of 680Top 20%
MM Mitsubishi Materials: 7 patents #133 of 1,543Top 9%
JT Japan Tobacco: 4 patents #152 of 1,187Top 15%
EL Elk: 3 patents #2 of 8Top 25%
KE Kabushiki Kaisha Elquest: 3 patents #2 of 2Top 100%
TS Toshiba Lifestyle Products & Services: 3 patents #16 of 81Top 20%
Honda Motor Co.: 2 patents #8,527 of 21,052Top 45%
TC Taiho Kogyo Co.: 2 patents #102 of 332Top 35%
Sharp Kabushiki Kaisha: 2 patents #5,184 of 10,731Top 50%
NC Nihon Parkerizing Co.: 1 patents #112 of 330Top 35%
HL Henkel Limited: 1 patents #428 of 861Top 50%
HC Hitachi Powdered Metals Co.: 1 patents #113 of 246Top 50%
IC Ikeda Bussan Co.: 1 patents #113 of 235Top 50%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
KC Kunimine Industries Co.: 1 patents #4 of 37Top 15%
Mitsubishi Electric: 1 patents #15,491 of 25,717Top 65%
MD Mitsubishi Electric System Lsi Design: 1 patents #31 of 98Top 35%
DC Dai-Ichi Kogyo Seiyaku Co.: 1 patents #153 of 288Top 55%
NS Nippon Steel: 1 patents #2,111 of 4,423Top 50%
OL Olympus: 1 patents #2,078 of 3,097Top 70%
OC Olympus Optical Co.: 1 patents #1,517 of 2,334Top 65%
TC Tamron Co.: 1 patents #74 of 138Top 55%
Overall (All Time): #8,584 of 4,157,543Top 1%
128
Patents All Time

Issued Patents All Time

Showing 101–125 of 128 patents

Patent #TitleCo-InventorsDate
5435702 Hermetic compressor Takao Yoshimura, Hironari Akashi, Masao Mangyo, Takeshi Ohno, Ichiro Kita +1 more 1995-07-25
5419993 Polyamide, electrophotographic photosensitive member employing the polyamide, and electrophotographic apparatus, device unit and facsimile machine employing the member Teigo Sakakibara, Kiyoshi Sakai, Noriko Ohtani 1995-05-30
5403795 Platelet .alpha.-Al.sub.2 O.sub.3 based ceramic composite Koichi Niihara 1995-04-04
5376466 Cermet blade member Susumu Uchida, Ken Yanai 1994-12-27
5362587 Electrophotographic photosensitive member having an intermediate layer comprising a plurality of polyether polyols Yuichi Hashimoto 1994-11-08
5361180 Simplified cassette loading mechanism for a magnetic recording and reproducing apparatus Koji Yamabuchi, Hideshi Ohtsuka, Yoshiyuki Yokomachi, Kazutaka Abe, Akio Tanaka 1994-11-01
5358386 Hermetic compressor Takao Yoshimura, Hironari Akashi, Koh Inagaki, Ichiro Kita, Junichiro Yabiki 1994-10-25
5296322 Electrophotographic photosensitive member and apparatus using same Naoto Fujimura, Yuichi Hashimoto, Tetsuo Shiraiwa, Shigeo Mori 1994-03-22
5294508 Electrophotographic photosensitive member with polyether polyols-polyisocyanate intermediate layer and apparatus Naoto Fujimura, Yuichi Hashimoto, Tetsuo Shiraiwa, Shigeo Mori 1994-03-15
5275981 Al.sub.2 O.sub.3 based ceramic Akio Nishiyama, Yasutaka Aikawa, Hideo Ohshima, Yuichiro Terao, Munenori Kato +1 more 1994-01-04
5246806 Electrophotographic photosensitive member and apparatus using same Naoto Fujimura, Yuichi Hashimoto, Tetsuo Shiraiwa, Shigeo Mori 1993-09-21
5236796 Electrophotographic sensitive medium Hideki Anayama, Yuichi Hashimoto 1993-08-17
5190837 Image holder member having resin layer of metal-coated fine resin particles and binder resin Kiyoshi Sakai, Hisami Tanaka, Naoto Fujimura, Teigo Sakakibara 1993-03-02
5188908 Al.sub.2 O.sub.3 Based ceramics Akio Nishiyama, Yasutaka Aikawa, Hideo Ohshima, Yuichiro Terao, Munenori Kato +1 more 1993-02-23
5176154 Apparatus for alternately arranging the direction of an article Takayoshi Sagawa, Toshiaki Okuzawa 1993-01-05
5130216 Photosensitive member for electrophotography Yuichi Hashimoto 1992-07-14
5130279 Silicon nitride based sintered material and process of manufacturing same Hideo Ohshima, Yasutaka Aikawa 1992-07-14
5104757 Electrophotographic photosensitive member having an improved intermediate layer Hideki Anayama, Yuichi Hashimoto 1992-04-14
5079117 Electrophotographic photosensitive member with electrical conductor containing polyether-polyurethane layer Hideki Anayama, Yuichi Hashimoto, Noriko Hirayama, Kiyoshi Sakai, Teigo Sakakibara +2 more 1992-01-07
5071723 Electrophotographic photosensitive member with grafted polyamide interlayer Hideki Anayama, Yuichi Hashimoto 1991-12-10
5017965 Charging member and electrophotographic apparatus using the same Yuichi Hashimoto 1991-05-21
5016132 Magnetic recording and reproducing tape guide unit Tohru Okuda, Hideo Okada, Osamu Okada, Mamoru Nakatsuka 1991-05-14
4975352 Electrophotographic photosensitive member and a method of preparing it Hideki Anayama 1990-12-04
4922715 Hydraulically operated continuously variable transmission Mitsumasa Furumoto, Eiichiro Kawahara 1990-05-08
4895782 Process for preparing dispersion liquid containing organic, photoconductive azo pigment and process for preparing electrophotographic, photosensitive member Hajime Miyazaki, Hideki Anayama 1990-01-23