Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12428607 | Lubricant composition | Yuji KOMURO, Kiyokazu Katayama | 2025-09-30 |
| 12351765 | Saturated aliphatic hydrocarbon compound composition, lubricant composition, and method for producing saturated aliphatic hydrocarbon compound composition | Kiyokazu Katayama, Kanako Samejima, Narinobu Kagami, Kouta OBA, Naoyuki Ueda +1 more | 2025-07-08 |
| 12084537 | Petroleum resin, hydrogenated petroleum resin, and production method for hydrogenated petroleum resin | Kenji Kobayashi, Masakatsu Kuroki | 2024-09-10 |
| 12071492 | Styrene resin, styrene resin composition, molded article thereof, and styrene resin production method | Takuma Aoyama | 2024-08-27 |
| 11180584 | Method for producing styrene resin and styrene resin molded article | Takuma Aoyama | 2021-11-23 |
| 9023960 | Process for producing α-olefin polymer, α-olefin polymer, and lubricating oil composition | Kiyokazu Katayama, Hideaki Noda, Hitomi Shimizu | 2015-05-05 |
| 8119850 | Process for producing unsaturated hydrocarbon compound | Shinjiro Fujikawa, Takuji Okamoto | 2012-02-21 |
| 7402610 | Carbonyl compound containing long-chain branched alkyl group | Haruhito Sato, Takashi Kashiwamura, Takuji Okamoto | 2008-07-22 |
| 6939929 | Alpha-olefin-aromatic vinyl copolymer | Noriyuki Tani, Takashi Kanesaki, Nobuhide Ishihara | 2005-09-06 |
| 6838409 | Catalyst for olefin/styrene copolymerization, and process for producing olefin/styrene copolymer | Nobuhiro Yabunouchi, Nobuhide Ishihara | 2005-01-04 |
| 6696527 | Olefin copolymers and films and sheets | Noriyuki Tani, Nobuhide Ishihara, Junichi Matsumoto | 2004-02-24 |
| 6339135 | Transition metal compound, catalyst for olefin polymerization, process for preparing olefin polymer | Takashi Kashiwamura, Nobuhiro Yabunouchi, Masami Watanabe, Noriyuki Tani, Takuji Okamoto +2 more | 2002-01-15 |
| 6171994 | Multiple crosslinking type transition metal compound used for olefin polymerization process | Nobuhiro Yabunouchi, Masami Watanabe, Takuji Okamoto, Noriyuki Tani | 2001-01-09 |
| 6107232 | Polymerization catalyst and process for preparing polymer by use of same | — | 2000-08-22 |
| 5854165 | Transition metal compound, catalyst for olefin polymerization, process for preparing olefin polymer by use of catalyst | Nobuhiro Yabunouchi, Masami Watanabe, Takuji Okamoto, Noriyuki Tani | 1998-12-29 |