Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10526686 | Low-oxygen clean steel and low-oxygen clean steel product | Michimasa Aono, Masanobu Suzuki | 2020-01-07 |
| 10202665 | Spring steel and method for producing the same | Masayuki Hashimura, Junya Yamamoto, Kazumi Mizukami, Naotsugu Yoshida, Masafumi Miyazaki | 2019-02-12 |
| 7207397 | Multi-pole transmitter source | Atsushi Saito | 2007-04-24 |
| 7143086 | File search method and apparatus, and index file creation method and device | Yumiko Kitagawa | 2006-11-28 |
| 6918969 | Cast steel and steel material with excellent workability, method for processing molten steel therefor and method for manufacturing the cast steel and steel material | Masafumi Zeze, Takashi Morohoshi, Ryusuke Miura, Shintaro Kusunoki, Yasuhiro Kinari +4 more | 2005-07-19 |
| 6585799 | Cast steel piece and steel product excellent in forming characteristics and method for treatment of molted steel therefor and method for production thereof | Masafumi Zeze, Takashi Morohoshi, Ryusuke Miura, Shintaro Kusunoki, Yasuhiro Kinari +4 more | 2003-07-01 |
| 6468467 | Method and apparatus for vacuum decarburization refining of molten steel | Katsuhiko Kato, Akio Shinkai, Takayuki Kaneyasu, Shinya Kitamura, Hiroyuki Ishimatsu +3 more | 2002-10-22 |
| 6190435 | Method of vacuum decarburization/refining of molten steel | Katsuhiko Kato, Akio Shinkai, Takayuki Kaneyasu, Shinya Kitamura, Hiroyuki Ishimatsu +3 more | 2001-02-20 |
| 5902374 | Vacuum refining method for molten steel | Shinya Kitamura, Kimitoshi Yonezawa, Shinji Sasakawa, Kunihiko Fujiwara | 1999-05-11 |