Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7009001 | Aromatic polycarbonate resin composition and moldings | Hiroshi Kawato | 2006-03-07 |
| 6941057 | Light guide plates and process for producing the same | Masaya Okamoto | 2005-09-06 |
| 6498228 | Flame-retardant polycarbonate resin composition and molded product | Akio Nodera, Tsuyoshi Murakami, Naoki Mitsuta | 2002-12-24 |
| 6462165 | Polycarbonate and optical material | Mitsunori Ito | 2002-10-08 |
| 6350847 | Polycarbonate resin composition and products of sheet forming thereof | Hiroshi Akamine, Jiro Chiba | 2002-02-26 |
| 6316575 | Processes for the production of polycarbonate | Kenji Tanaka, Akiko Yabe, Misako Ishikawa, Naoko Seino | 2001-11-13 |
| 6183830 | Digital video disk substrate | Masaya Okamoto | 2001-02-06 |
| 5922826 | Process for producing polycarbonate | Kenji Tanaka, Kouichi Suga, Yoshikatsu Seino, Akihiro Shishikura, Noriyuki Kunishi | 1999-07-13 |
| 5650480 | Process for preparing polycarbonate | Ryozo Okumura, Seiji Takahashi | 1997-07-22 |
| 5625027 | Branched polycarbonate | Ryozo Okumura, Seiji Takahashi | 1997-04-29 |
| 5473046 | Process for producing a branched polycarbonate | Ryozo Okumura, Seiji Takahashi | 1995-12-05 |
| 5470937 | Anisotropically oriented phase difference compensation film of a branched polycarbonate | Masaya Okamoto, Noriyuki Kunishi, Taisuke NAKASHIMA | 1995-11-28 |
| 5459225 | Process for producing polycarbonate having reduced residual chloroformate therein | Ryozo Okumura, Yoshinobu Suwabe | 1995-10-17 |
| 5349042 | Process for producing polycarbonate | Ryozo Okumura, Yoshinobu Suwabe | 1994-09-20 |
| 5349043 | Polycarbonate and process for producing the same | Ryozo Okumura, Noriyuki Kunishi | 1994-09-20 |
| 5322919 | Process for producing a polycarbonate in inert solvent | Kouichi Kurosawa, Noriyuki Kunishi, Masaya Okamoto | 1994-06-21 |
| 5314949 | Polycarbonate resin composition | Shiro Kozakura, Kenji Tanaka | 1994-05-24 |
| 5306802 | Polycarbonate copolymer and method for production thereof | Ryozo Okumura, Noriyuki Kunishi | 1994-04-26 |
| 5283314 | Process for the production of a branched polycarbonate with emulsion having interfacial area | Hideo Kusuyama, Masayuki Shinohara, Masaya Okamoto | 1994-02-01 |
| 5243018 | Branched halogenated polycarbonate having trihalo phenoxy end groups | Takashi Komatsu | 1993-09-07 |
| 5104964 | Branched polycarbonate having branching parameter and degree of branching | Hideo Kusuyama, Masayuki Shinohara, Masaya Okamoto | 1992-04-14 |
| 5041523 | Process for production of branched polycarbonate | Eiichi Terada | 1991-08-20 |