Issued Patents All Time
Showing 26–50 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6787499 | Catalyst for the production of &agr;-olefin and &agr;-olefin production method | Shinji Tanaka, Yasushi Shiraki, Takao Tamura, Masahiko Kuramoto, Haruhito Sato | 2004-09-07 |
| 6555633 | Catalysts for &agr;-olefin production and processes for producing &agr;-olefin | Shinji Tanaka, Yasushi Shiraki, Takao Tamura, Masahiko Kuramoto, Haruhito Sato | 2003-04-29 |
| 6462154 | Process for preparing olefin polymer and catalyst for polymerization of olefin | Syoji Naganuma | 2002-10-08 |
| 6339135 | Transition metal compound, catalyst for olefin polymerization, process for preparing olefin polymer | Takashi Kashiwamura, Nobuhiro Yabunouchi, Noriyuki Tani, Takuji Okamoto, Kiyohiko Yokota +2 more | 2002-01-15 |
| 6171994 | Multiple crosslinking type transition metal compound used for olefin polymerization process | Nobuhiro Yabunouchi, Kiyohiko Yokota, Takuji Okamoto, Noriyuki Tani | 2001-01-09 |
| 6169154 | Branched ethylenic macromonomer and its polymer | Shuji Machida, Masahiro Mitani, Nobuhiro Yabunouchi | 2001-01-02 |
| 5955557 | Branched ethylenic macromonomer and its polymer | Shuji Machida, Masahiro Mitani, Nobuhiro Yabunouchi | 1999-09-21 |
| 5854165 | Transition metal compound, catalyst for olefin polymerization, process for preparing olefin polymer by use of catalyst | Nobuhiro Yabunouchi, Kiyohiko Yokota, Takuji Okamoto, Noriyuki Tani | 1998-12-29 |
| 5769308 | Welding material for use in hard-facing and method of determining components thereof | Tsuyoshi Kokusho, Keizou Tanaka, Hideaki Ikeda, Masanobu Ishikawa, Hideo Nakamura +1 more | 1998-06-23 |
| 5726705 | Surface defect inspection apparatus | Masanori Imanishi, Kiyoshi Yoshida, Teruo Asaeda, Yutaka Suzuki, Shigeru Chida | 1998-03-10 |
| 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 |
| 5586544 | Fuel injection amount control system for internal combustion engines and intake passage wall temperature-estimating device used therein | Toru Kitamura, Akira Katoh, Katsuhiro Kumagai, Sachito Fujimoto, Hiroshi Kitagawa +2 more | 1996-12-24 |
| 5524591 | Fuel supply amount control system for internal combustion engines | Toshiaki Hirota, Sachito Fujimoto, Toru Kitamura | 1996-06-11 |
| 5461127 | Polymerization catalysts and process for producing polymers | Shoji Naganuma | 1995-10-24 |
| 5403908 | Aryl styrene-based copolymer | Shuji Machida, Satoshi Asahi | 1995-04-04 |
| 5391661 | Process for producing a styrenic polymer and a catalyst for use therein | Shoji Naganuma, Norio Tomotsu | 1995-02-21 |
| 5378777 | Process for producing styrenic polymer and copolymer | Shuji Machida | 1995-01-03 |
| 5369196 | Production process of olefin based polymers | Junichi Matsumoto, Takuji Okamoto, Nobuhide Ishihara | 1994-11-29 |
| 5361968 | Method of manufacturing metallic press die | Keizou Tanaka, Noboru Nishikawa, Tsuyoshi Kawase | 1994-11-08 |
| 5294685 | Process for producing a styrenic polymer having a high degree of syndiotacticity | Shoji Naganuma, Norio Tomotsu | 1994-03-15 |
| 5171919 | Process for producing propylene based oligomers | Nobuhide Ishihara | 1992-12-15 |