Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10428409 | Hot-rolled steel sheet with excellent press formability and production method thereof | Daisuke Maeda, Kazuya Ootsuka | 2019-10-01 |
| 10384256 | Tooling for punching steel sheet and punching method | Yuzo Takahashi, Tatsuo Yokoi, Junji Haji, Satoshi Horioka | 2019-08-20 |
| 10273566 | Hot-rolled steel sheet and method for producing same | Daisuke Maeda, Junji Haji, Fuminori Tasaki | 2019-04-30 |
| 9732405 | Hot rolled steel sheet and method of producing same | Yuzo Takahashi, Junji Haji | 2017-08-15 |
| 9617626 | High-strength steel sheet exhibiting excellent stretch-flange formability and bending workability, and method of producing molten steel for the high-strength steel sheet | Kenichi Yamamoto, Hideaki Yamamura, Yuzo Takahashi, Kohsuke Kume, Junji Haji +2 more | 2017-04-11 |
| 9200342 | Hot-rolled steel sheet and manufacturing method thereof | Tatsuo Yokoi, Hiroshi Abe, Osamu Yoshida, Yasuhiro Miyatani, Shinichi Araki | 2015-12-01 |
| 9121079 | High-strength hot-rolled steel sheet and method of manufacturing the same | Yuzo Takahashi, Junji Haji | 2015-09-01 |
| 7981224 | Multi-phase steel sheet excellent in hole expandability and method of producing the same | Takehiro Hoshino | 2011-07-19 |
| 7662243 | Hot rolled steel sheet | Tatsuo Yokoi, Tetsuya Yamada | 2010-02-16 |
| 7381478 | Hot rolled steel sheet for processing and method for manufacturing the same | Tatsuo Yokoi, Tetsuya Yamada | 2008-06-03 |
| 6544354 | High-strength steel sheet highly resistant to dynamic deformation and excellent in workability and process for the production thereof | Junichi Wakita, Yuzo Takahashi, Hidesato Mabuchi, Manabu Takahashi, Akihiro Uenishi +3 more | 2003-04-08 |
| 6356754 | Voice recording method for mobile communication apparatus | Katsuyuki Onozawa, Fujio Inagami, Hiroshi Fujita | 2002-03-12 |
| 6319338 | High-strength steel plate having high dynamic deformation resistance and method of manufacturing the same | Yuzo Takahashi, Junichi Wakita, Hidesato Mabuchi, Manabu Takahashi, Akihiro Uenishi +3 more | 2001-11-20 |
| 6181923 | Automatic frequency control circuit and method of automatic frequency control | Fujio Inagami | 2001-01-30 |
| 5774797 | Portable telephone | Minoru Sakata | 1998-06-30 |
| 5505796 | High yield ratio-type, hot rolled high strength steel sheet excellent in formability or in both of formability and spot weldability, and production thereof | Junichi Wakita, Kazuyoshi Esaka, Norio Ikenaga, Hiroshi Abe | 1996-04-09 |
| 5030298 | Process for producing a hot rolled steel sheet with high strength and distinguished formability | Manabu Takahashi, Junichi Wakita, Kazuyoshi Esaka | 1991-07-09 |
| 5017248 | Hot rolled steel sheet with high strength and distinguished formability | Manabu Takahashi, Junichi Wakita, Kazuyoshi Esaka | 1991-05-21 |
| 4956662 | Apparatus for and method of recording color picture image | Toshio Sakai, Kazunori Tanabe, Tomoaki Hattori | 1990-09-11 |
| 4908818 | Multiplex communication arrangement capable of selectively monitoring active multiplexers and of simultaneously checking an input to a stand-by demultiplexer | — | 1990-03-13 |