Issued Patents All Time
Showing 26–50 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6818074 | High-ductility steel sheet excellent in press formability and strain age hardenability, and method for manufacturing the same | Saiji Matsuoka, Tetsuo Shimizu, Kei Sakata | 2004-11-16 |
| 6814819 | Methods of manufacturing hot-dip galvanized hot-rolled and cold-rolled steel sheets excellent in strain age hardening property | Saiji Matsuoka, Tetsuo Shimizu, Kei Sakata | 2004-11-09 |
| 6740174 | Soft Cr-containing steel | Atsushi Miyazaki, Junichiro Hirasawa, Mineo Muraki, Yoshihiro Yazawa | 2004-05-25 |
| 6737018 | Corrosion-resistant chromium steel for architectural and civil engineering structural elements | Hiroki Ota, Takumi Ujiro, Junichiro Hirasawa | 2004-05-18 |
| 6733601 | Ferritic stainless steel sheet with excellent workability | Yoshihiro Yazawa, Mineo Muraki, Yoshihiro Ozaki, Kunio Fukuda, Yukihiro Baba | 2004-05-11 |
| 6692584 | High tensile cold-rolled steel sheet excellent in ductility and in strain aging hardening properties, and method for producing the same | Kei Sakata, Akio Tosaka | 2004-02-17 |
| 6676774 | Hot rolled steel plate and cold rolled steel plate being excellent in strain aging hardening characteristics | Saiji Matsuoka, Tetsuo Shimizu, Kei Sakata | 2004-01-13 |
| 6537394 | Method for producing hot-dip galvanized steel sheet having high strength and also being excellent in formability and galvanizing property | Kazunori Osawa, Kei Sakata, Yoshitsugu Suzuki, Akio Shinohara | 2003-03-25 |
| 6425963 | High tensile strength hot-rolled steel sheet | Shinjiro Kaneko, Tetsuo Shimizu | 2002-07-30 |
| 6410163 | High strength thin steel sheet, high strength alloyed hot-dip zinc-coated steel sheet, and method for producing them | Yoshitsugu Suzuki, Kazunori Osawa, Chiaki Kato, Yoichi Tobiyama, Kei Sakata +1 more | 2002-06-25 |
| 6364968 | High-strength hot-rolled steel sheet having excellent stretch flangeability, and method of producing the same | Eiko Yasuhara, Akio Tosaka, Takao Uchiyama, Nobuo Yamada | 2002-04-02 |
| 6331216 | Steel pipe having high ductility and high strength and process for production thereof | Takaaki Toyooka, Akira Yorifuji, Masanori Nishimori, Motoaki Itadani, Yuji Hashimoto +6 more | 2001-12-18 |
| 6290789 | Ultrafine-grain steel pipe and process for manufacturing the same | Takaaki Toyooka, Akira Yorifuji, Masanori Nishimori, Motoaki Itadani, Yuji Hashimoto +6 more | 2001-09-18 |
| 6290784 | Hot rolled steel sheet having an ultrafine grain structure and process for producing steel sheet | Eiko Yasuhara, Akio Tosaka | 2001-09-18 |
| 6221179 | Hot rolled steel plate to be processed having hyper fine particles, method of manufacturing the same, and method of manufacturing cold rolled steel plate | Eiko Yasuhara, Masahiko Morita, Susumu Okada | 2001-04-24 |
| 6221180 | Steel sheet for can and manufacturing method thereof | Akio Tosaka, Masatoshi Aratani, Hideo Kuguminato, Makoto Aratani, Yuji Miki | 2001-04-24 |
| 6210496 | High-strength high-workability cold rolled steel sheet having excellent impact resistance | Syusaku Takagi, Kazuya Miura, Kei Sakata, Takashi Obara | 2001-04-03 |
| 6171412 | Coated seizure-hardening type cold-rolled steel sheet having excellent aging resistance and method of production thereof | Saiji Matsuoka, Masahiko Morita, Takashi Obara, Tetsuya Kiyasu, Yoshio Yamazaki | 2001-01-09 |
| 6027581 | Cold rolled steel sheet and method of making | Kazunori Osawa, Masahiko Morita, Takashi Obara | 2000-02-22 |
| 5853503 | Hot rolled steel sheets and method of producing the same | Kazuhiro Seto, Kei Sakata, Takashi Obara | 1998-12-29 |
| 5853659 | Steel, steel sheet having excellent workability and method of producing the same by electric furnace-vacuum degassing process | Takashi Sekita, Taro Yahiro, Saiji Matsuoka, Toshio Fujimura, Takemi Yamamoto +2 more | 1998-12-29 |
| 5666634 | Alloy steel powders for sintered bodies having high strength, high fatigue strength and high toughness, sintered bodies, and method for manufacturing such sintered bodies | Shigeru Unami | 1997-09-09 |
| 5308702 | Iron-based powder composition for use in powder metallurgy, process for its production and process for producing iron-base sintered material | Koji Yano, Shigeaki Takajo | 1994-05-03 |
| 5098648 | Production process for sintered Fe-Co type magetic materials | Yoshisato Kiyota | 1992-03-24 |
| 5055128 | Sintered Fe-Co type magnetic materials | Yoshisato Kiyota | 1991-10-08 |