Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693728 | Process for producing cyclic olefin based polymers | Takuji Okamoto, Junichi Matsumoto, Hiroshi Maezawa | 1997-12-02 |
| 5678402 | Air-fuel ratio control system for internal combustion engines and exhaust system temperature-estimating device applicable thereto | Hiroshi Kitagawa, Seiji Hatcho, Tetsuya Kaneko, Akira Kato, Toshiaki Hirota +1 more | 1997-10-21 |
| 5648443 | Cyclic olefin copolymers, compositions and molded articles comprising the copolymers | Takuji Okamoto, Junichi Matsumoto, Hiroshi Maezawa | 1997-07-15 |
| 5629398 | Process for producing cyclic olefin based polymers, cyclic olefin copolymers, compositions and molded articles comprising the copolymers | Takuji Okamoto, Junichi Matsumoto, Hiroshi Maezawa | 1997-05-13 |
| 5600005 | Process for producing tetrakisflorophenylborate | Shoji Naganuma, Norio Tomotsu | 1997-02-04 |