Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9797024 | Hot-rolled steel sheet for gas nitrocarburizing and manufacturing method thereof | Tatsuo Yokoi, Riki Okamoto, Nobuhiro Fujita, Kazuaki Nakano, Takeshi Yamamoto | 2017-10-24 |
| 9752217 | Hot-rolled steel sheet and method of producing the same | Tatsuo Yokoi, Riki Okamoto, Nobuhiro Fujita, Kazuaki Nakano, Takeshi Yamamoto | 2017-09-05 |
| 9587287 | Bainite-containing-type high-strength hot-rolled steel sheet having excellent isotropic workability and manufacturing method thereof | Tatsuo Yokoi, Riki Okamoto, Nobuhiro Fujita, Kazuaki Nakano, Takeshi Yamamoto | 2017-03-07 |
| 9512508 | High-strength cold-rolled steel sheet having excellent stretch flangeability and precision punchability and manufacturing method thereof | Nobuhiro Fujita, Tatsuo Yokoi, Riki Okamoto, Kazuaki Nakano, Shinichiro Watanabe | 2016-12-06 |
| 9453269 | Hot-rolled steel sheet for gas nitrocarburizing and manufacturing method thereof | Tatsuo Yokoi, Riki Okamoto, Nobuhiro Fujita, Kazuaki Nakano, Takeshi Yamamoto | 2016-09-27 |
| 8541537 | Branched polycarbonate resin and process for producing the same | Takayuki Ozaki, Hiroshi Okamoto | 2013-09-24 |
| 8501303 | Aromatic polycarbonate resin composition | Yoji Ohira, Toshiyuki Miyake, Hiroshi Okamoto, Takayuki Ozaki, Maiko Murai | 2013-08-06 |
| 7244804 | Polycarbonate copolymer, resin composition, and molded article | Koki Ikeda, Toshimasa Tokuda, Manabu Matsui, Toshiyuki Miyake, Kazushi Tando | 2007-07-17 |