Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6864353 | Production process for ethylene oxide copolymer | Michiyuki Kono, Manabu Kikuta, Masahito Nishiura, Fumihide Tamura, Taketo Toba +4 more | 2005-03-08 |
| 6765084 | Production process for ethylene oxide resin | Michiyuki Kono, Manabu Kikuta, Masahito Nishiura, Fumihide Tamura, Taketo Toba | 2004-07-20 |
| 6638345 | Method for collecting reversely subliming substance and apparatus therefor | Tsukasa Takahashi, Kenji Nakahara | 2003-10-28 |
| 6576773 | Method for production of pyromellitic dianhydride | Kenji Nakahara, Tsukasa Takahashi | 2003-06-10 |