Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12234524 | Electric resistance welded steel pipe or tube | Makio Gunji | 2025-02-25 |
| 11512361 | Electric resistance welded steel pipe or tube and production method for electric resistance welded steel pipe or tube | Makio Gunji | 2022-11-29 |
| 11332812 | Electric resistance welded steel tubes for high-strength thin hollow stabilizers, and methods for manufacturing the same | Masatoshi Aratani, Shinsaku Kokubo, Hiromichi Hori, Ryoji Matsui | 2022-05-17 |
| 10308994 | Seamless steel tube for fuel injection | Manabu Nishino, Makio Gunji | 2019-06-04 |
| 10301703 | High-strength welded steel pipe for airbag inflator and method for manufacturing the same | Masatoshi Aratani, Kenichi Iwazaki, Ryoji Matsui | 2019-05-28 |
| 9862014 | Method for electric resistance welded steel tube | Masayuki Sakaguchi, Kei Sakata | 2018-01-09 |
| 8505941 | Torsion beam manufacturing method and torsion beam | Yuji Hashimoto, Shunsuke Toyoda, Kinya Nakagawa, Koji Suzuki, Osamu Sonobe +1 more | 2013-08-13 |
| 7992762 | Frictionally press-bonded member | Tomohiko Sato, Takeo Yamamoto, Kaname Onoda | 2011-08-09 |
| 7942984 | Steel pipe with good magnetic properties and method of producing the same | Yasuhide Ishiguro, Kei Sakata, Masayuki Sakaguchi, Masayoshi Ishida, Motoaki Itadani +1 more | 2011-05-17 |
| 7887649 | High-tensile strength welded steel tube for structural parts of automobiles and method of producing the same | Shunsuke Toyoda, Masatoshi Aratani, Yuji Hashimoto, Koji Suzuki, Kei Sakata +3 more | 2011-02-15 |
| 7591914 | High-workability steel pipe and method of producing same | Takaaki Toyooka, Akira Yorifuji, Masanori Nishimori, Motoaki Itadani, Takatoshi Okabe +1 more | 2009-09-22 |
| 7018488 | Steel pipe for use in reinforcement of automobile and method for production thereof | Takaaki Toyooka, Masanori Nishimori, Akira Yorifuji, Motoaki Itadani, Takatoshi Okabe +1 more | 2006-03-28 |
| 6755919 | Stainless steel tube for automobile structure | Takaaki Toyooka, Akira Yorifuji, Makoto Kitazawa, Motoaki Itadani, Masatoshi Aratani +1 more | 2004-06-29 |
| 6749954 | Welded steel pipe having excellent hydroformability and method for making the same | Takaaki Toyooka, Masatoshi Aratani, Yuji Hashimoto, Akira Yorifuji, Takatoshi Okabe +2 more | 2004-06-15 |
| 6736910 | High carbon steel pipe excellent in cold formability and high frequency hardenability and method for producing the same | Takaaki Toyooka, Akira Yorifuji, Masanori Nishimori, Motoaki Itadani, Takatoshi Okabe +2 more | 2004-05-18 |
| 6723453 | Welded steel pipe having excellent hydroformability and method for making the same | Takaaki Toyooka, Masatoshi Aratani, Yuji Hashimoto, Akira Yorifuji, Takatoshi Okabe +2 more | 2004-04-20 |
| 6682829 | Welded steel pipe having excellent hydroformability and method for making the same | Takaaki Toyooka, Masatoshi Aratani, Yuji Hashimoto, Akira Yorifuji, Takatoshi Okabe +2 more | 2004-01-27 |
| 6217680 | Thick cold rolled steel sheet excellent in deep drawability and method of manufacturing the same | Kaneharu Okuda, Kei Sakata, Takashi Obara, Atsushi Ogino | 2001-04-17 |
| 6103394 | Thin steel sheet having excellent rectangular drawability and production method thereof | Kaneharu Okuda, Kei Sakata, Takaaki Hira, Atsushi Ogino, Takashi Obara | 2000-08-15 |
| 5976282 | Method for producing austenitic steel plate with excellent surface brightness and corrosion resistance | Kunio Fukuda, Kazuhide Ishii, Susumu Sato | 1999-11-02 |
| 5626694 | Process for the production of stainless steel sheets having an excellent corrosion resistance | Susumu Satoh, Mitsuyuki Fujisawa, Kunio Fukuda | 1997-05-06 |
| 5139583 | Graphite precipitated hot-rolled steel plate having excellent bending workability and hardenability and method therefor | Masahiko Morita, Fusao Togashi | 1992-08-18 |