Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9209479 | Nonaqueous electrolyte solution and lithium secondary battery using same | Takashi Hayashi | 2015-12-08 |
| 9130243 | Non-aqueous electrolytic solution and lithium secondary battery | Hidenobu Nogi | 2015-09-08 |
| 8124272 | Polyvinyl acetal resin varnish gelling agent, nonaqueous electrolyte solution, and electrochemical device | Takashi Hayashi, Kuniyuki Takamatsu | 2012-02-28 |
| 7128998 | Nonaqueous electrolyte secondary battery | Takashi Shimoyamada, Fumihata Yamamoto, Koichi Kawamura, Takashi Hayashi | 2006-10-31 |
| 6180800 | Fluorine-substituted cyclic carbonate and electrolytic solution and battery containing the same | Keiichi Yokoyama, Takako Koiso | 2001-01-30 |
| 6010806 | Fluorine-substituted cyclic carbonate electrolytic solution and battery containing the same | Keiichi Yokoyama, Takako Sasano | 2000-01-04 |
| 5977277 | Acrylic ester, novel allyl ether, novel allyl carbonate, acrylic ester polymer, allyl ether polymer, allyl carbonate polymer and polymeric solid electrolyte | Keiichi Yokoyama, Takako Sasano, Masahiro Toriida, Satoko Mita, Masayoshi Watanabe | 1999-11-02 |
| 5925283 | Ionically conductive polymeric gel electrolyte and solid battery containing the same | Masahiro Taniuchi, Tomohiro Inoue, Toshiyuki Ohsawa, Keiichi Yokoyama, Masahiro Toriida | 1999-07-20 |
| 5922888 | Process for removal of diol as impurity in cyclic carbonic acid ester | Masahiro Toriida, Keiichi Yokoyama | 1999-07-13 |
| 5847188 | Carbonate compounds, non-aqueous electrolytic solutions and batteries comprising non-aqueous electrolytic solutions | Keiichi Yokoyama, Shigeru Fujita, Atsuo Omaru | 1998-12-08 |
| 5659062 | Non-aqueous electrolytic solutions and batteries comprising non-aqueous electrolytic solutions | Keiichi Yokoyama | 1997-08-19 |
| 5633099 | Carbonate compounds, non-aqueous electrolytic solutions and batteries comprising non-aqueous electrolytic solutions | Keiichi Yokoyama, Shigeru Fujita, Atsuo Omaru | 1997-05-27 |
| 5580684 | Non-aqueous electrolytic solutions and non-aqueous electrolyte cells comprising the same | Keiichi Yokoyama, Shigeru Fujita, Yoshiaki Naruse, Masahiro Toriida, Atsuo Omaru | 1996-12-03 |
| 5385794 | Cell electrolyte solvent, cell electrolyte comprising the solvent and non-aqueous electrolyte battery comprising the electrolyte | Keiichi Yokoyama, Shigeru Fujita, Atsuo Omaru | 1995-01-31 |