Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8557020 | Compound, metal extractant, and application of the same | Fumio Hamada, Chun Li | 2013-10-15 |
| 8500846 | Rare metal extractant | Chun Li, Manabu Yamada, Fumio Hamada | 2013-08-06 |
| 8486554 | Alkaline battery separator, process for production thereof and alkaline batteries | Yasuhiro Ito, Masanao Tanaka | 2013-07-16 |
| 8038969 | Rare metal/platinum-group metal extractant and method for extracting rare metals and platinum-group metals | Atsushi Shibayama, Fumio Hamada, Manabu Yamada, Mitsuhiro AKAMA, Takanori Imai | 2011-10-18 |
| 7923143 | Battery separator and battery comprising same | Masanao Tanaka, Toshiaki Takase, Yasuhiro Ito | 2011-04-12 |
| 7402539 | Battery separator | Toshiaki Takase, Noriko Miyaguchi, Masanao Tanaka | 2008-07-22 |
| 6586137 | Battery separator | Masanao Tanaka, Hiroaki Yamazaki, Keisuke Takahashi, Toshiaki Takase, Shinji Oota | 2003-07-01 |
| 5910357 | Separation membrane and method of producing the same, and shape memory polymer composition | Hisao Hachisuka, Kenichi Ikeda, Hitoshi Takano, Amane Mochizuki | 1999-06-08 |
| 5290645 | Battery separator and a battery | Masanao Tanaka, Nobutoshi Tokutake, Hiroaki Yamazaki, Masaki Hirooka, Koji Kimura | 1994-03-01 |
| 4612327 | Repellent compositions against insects, ticks and mites employing mixtures of O-alkyl-N-phenylthiocarbamates and Deet | Akira Matukuma, Yohji Takahashi | 1986-09-16 |