YK

Yoshio Kawai

SC Shin-Etsu Chemical Co.: 59 patents #51 of 2,176Top 3%
CL Central Glass Company, Limited: 29 patents #11 of 968Top 2%
Sumitomo Electric Industries: 23 patents #806 of 21,551Top 4%
FC Fujisawa Pharmaceutical Co.: 15 patents #53 of 782Top 7%
NT NTT: 12 patents #334 of 4,871Top 7%
IBM: 6 patents #16,453 of 70,183Top 25%
MC Mitsubishi Gas Chemical Company: 6 patents #328 of 1,727Top 20%
PA Panasonic: 3 patents #7,617 of 21,108Top 40%
SC Sumitomo Chemical: 1 patents #2,469 of 4,033Top 65%
JC Japan Hydrazine Co.: 1 patents #17 of 35Top 50%
📍 Joetsu, JP: #16 of 239 inventorsTop 7%
Overall (All Time): #19,669 of 4,157,543Top 1%
86
Patents All Time

Issued Patents All Time

Showing 76–86 of 86 patents

Patent #TitleCo-InventorsDate
4980250 Secondary battery Yuzuru Takahashi, Naoto Sakurai 1990-12-25
4973739 Process for production of carboxylic acid esters Seiji Nagasawa, Hideo Ikarashi, Hiroyuki Hirayama 1990-11-27
4965274 Quinolyl methoxy compounds, processes for preparation thereof and pharmaceutical composition comprising the same Teruo Oku, Hiroshi Kayakiri, Kazuyoshi Kuratani, Masashi Hashimoto 1990-10-23
4963576 Dithioacetal compounds, processes for preparation thereof and pharmaceutical composition comprising the same Teruo Oku, Hiroshi Kayakiri, Kazuyoshi Kuratani, Masashi Hashimoto 1990-10-16
4923881 Quinolyl methoxy compounds, processes for preparation thereof and pharmaceutical composition comprising the same Teruo Oku, Hiroshi Kayakiri, Kazuyoshi Kuratani, Masashi Hashimoto 1990-05-08
4725608 Semicarbazide derivatives, processes for preparation thereof and pharmaceutical composition comprising the same Osamu Nakaguchi, Norihiko Shimazaki, Masashi Hashimoto, Michie Nakatuka 1988-02-16
4694004 Semicarbazide derivatives, processes for preparation thereof and pharmaceutical composition comprising the same Osamu Nakaguti, Norihiko Shimazaki, Masashi Hashimoto, Michie Nakatuka 1987-09-15
4536605 Process for the production of tertiary olefin Koichi Kida, Yutaka Tamura, Yoshiharu Suzuki 1985-08-20
4479942 Tetrahydrofurnancarboxylic acid derivatives, processes for preparation thereof and pharmaceutical compositions thereof Michio Yamashita, Tadaaki Komori, Junji Hosoda, Itsuo Uchida, Masanobu Kohsaka +4 more 1984-10-30
4343959 Process for the production of tertiary olefin Koichi Kida, Yutaka Tamura, Yoshiharu Suzuki 1982-08-10
4255592 Process for producing aromatic primary hydroperoxide Koichi Kida, Hideo Ikarashi, Tsukasa Toki, Yoshiharu Suzuki 1981-03-10