KY

Keiichi Yokoyama

AC Ajinomoto Co.: 20 patents #42 of 2,190Top 2%
MI Mitsui Petrochemical Industries: 16 patents #19 of 1,024Top 2%
SO Sony: 5 patents #7,785 of 25,231Top 35%
MC Mitsui Chemicals: 4 patents #512 of 2,279Top 25%
MP Mitsui Pharmaceuticals: 2 patents #5 of 28Top 20%
HC Honshu Chemical Industry Co.: 2 patents #16 of 64Top 25%
NK Nippon Gohsei Kagaku Kogyo: 2 patents #30 of 142Top 25%
JA Japan Atomic Energy Agency: 1 patents #64 of 251Top 30%
Bridgestone: 1 patents #1,586 of 2,860Top 60%
Ricoh Company: 1 patents #6,936 of 9,818Top 75%
Overall (All Time): #65,772 of 4,157,543Top 2%
45
Patents All Time

Issued Patents All Time

Showing 26–45 of 45 patents

Patent #TitleCo-InventorsDate
5925283 Ionically conductive polymeric gel electrolyte and solid battery containing the same Masahiro Taniuchi, Tomohiro Inoue, Toshiyuki Ohsawa, Akio Hiwara, Masahiro Toriida 1999-07-20
5922888 Process for removal of diol as impurity in cyclic carbonic acid ester Masahiro Toriida, Akio Hiwara 1999-07-13
5847188 Carbonate compounds, non-aqueous electrolytic solutions and batteries comprising non-aqueous electrolytic solutions Akio Hiwara, Shigeru Fujita, Atsuo Omaru 1998-12-08
5827712 Process for efficiently producing transglutaminase through DNA recombination Yoshimi Kikuchi, Hisashi Yasueda 1998-10-27
5659062 Non-aqueous electrolytic solutions and batteries comprising non-aqueous electrolytic solutions Akio Hiwara 1997-08-19
5633099 Carbonate compounds, non-aqueous electrolytic solutions and batteries comprising non-aqueous electrolytic solutions Akio Hiwara, Shigeru Fujita, Atsuo Omaru 1997-05-27
5580684 Non-aqueous electrolytic solutions and non-aqueous electrolyte cells comprising the same Shigeru Fujita, Akio Hiwara, Yoshiaki Naruse, Masahiro Toriida, Atsuo Omaru 1996-12-03
5561005 Secondary battery having non-aqueous electrolyte Atsuo Omaru, Shigeru Fujita, Akio Hihara 1996-10-01
5385794 Cell electrolyte solvent, cell electrolyte comprising the solvent and non-aqueous electrolyte battery comprising the electrolyte Akio Hiwara, Shigeru Fujita, Atsuo Omaru 1995-01-31
5369015 Method for producing an angiotensin converting enzyme inhibitor-containing composition Masaaki Yoshikawa, Masayasu Hasegawa, Ryouichi Yasumoto, Hiroyuki Fujita 1994-11-29
5314807 Method for producing an angiotensin converting enzyme inhibitor-containing composition Masaaki Yoshikawa, Masayasu Hasegawa, Ryouichi Yasumoto, Hiroyuki Fujita 1994-05-24
5304555 Pyrimidines and pharmaceutically acceptable salts thereof useful in treatment of neurological disorders Akira Awaya, Kazutoshi Horikomi, Tadayuki Sasaki, Hisashi Kobayashi, Akira Mizuchi +5 more 1994-04-19
5192799 Coumaran group containing amine compounds and their acid addition salts and quaternary ammonium salts and the use thereof as anti arrhythmic agents and as psychotropic agents Ikuo Tomino, Masaharu Ishiguro, Takumi Kitahara, Noriaki Kihara, Joji Kamiya +6 more 1993-03-09
5041660 Novel alpha-chloroketone derivative and process for preparation thereof Yoshio Noguchi, Noriaki Kihara 1991-08-20
4966968 Indan derivatives Isao Hashimoto, Takumi Kitahara 1990-10-30
4959368 Therapeutic agent for neurological diseases Akira Awaya, Takuo Nakano, Hisashi Kobayashi, Ken E. Tan, Kazutoshi Horikomi +6 more 1990-09-25
4900861 Method of producing polysilane compounds Katsuo Taniguchi, Yoshihisa Kiso 1990-02-13
4886912 Cyanoguanidine derivative and process for preparation thereof Hiroaki Tan, Noriaki Kihara 1989-12-12
4742165 2-piperazinopyrimidine derivatives Tatsuyoshi Ishida, Shigeru Isayama, Kohji Kato, Takumi Kitahara, Yoshiaki Furuya 1988-05-03
4734418 Quinazoline compounds and antihypertensives Koji Kato, Takumi Kitahara, Hiroyasu Ohno, Takashi Nishina, Mikio Kumakura +4 more 1988-03-29