Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7923580 | Polymerizable boric compounds, methods of producing the same, polymerizable compositions and ionic-conductive polymeric electrolytes | Norio Iwayasu, Shin Nishimura, Takefumi Okumura, Tetsuya Itoh | 2011-04-12 |
| 7759003 | Polymerizable boric compounds, methods of producing the same, polymerizable compositions and ionic-conductive polymeric electrolytes | Norio Iwayasu, Shin Nishimura, Takefumi Okumura, Tetsuya Itoh | 2010-07-20 |
| 7473492 | Lithium secondary battery | Takefumi Okumura, Shin Nishimura, Norio Iwayasu, Shoichi Yokoyama | 2009-01-06 |
| 7230057 | Boron-containing compound, ion-conductive polymer and polyelectrolyte for electrochemical devices | Takefumi Okumura, Shin Nishimura, Norio Iwayasu, Shoichi Yokoyama | 2007-06-12 |
| 6998465 | Process for producing boric ester compound, electrolyte for electrochemical device, and secondary battery | Shoichi Yokoyama | 2006-02-14 |