Issued Patents All Time
Showing 26–47 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5718775 | Grain-oriented electrical steel sheet and method of manufacturing the same | Kunihiro Senda, Takafumi Suzuki, Hiroaki Toda, Hiroi Yamaguchi | 1998-02-17 |
| 5679178 | Method of manufacturing grain-oriented silicon steel sheet exhibiting excellent magnetic characteristics over the entire length of coil thereof | Kazuaki Tamura, Masako Hisata, Masaki Kawano | 1997-10-21 |
| 5666842 | Method of cold rolling grain-oriented silicon steel sheet having excellent and uniform magnetic characteristics along rolling direction of coil and a roll cooling controller for cold rolling mill using the cold rolling method | Yasuyuki Hayakawa, Humihiko Takeuchi, Masataka Yamada | 1997-09-16 |
| 5665178 | Method of manufacturing grain-oriented silicon steel sheet having excellent magnetic characteristics | Masayoshi Ishida, Kunihiro Senda | 1997-09-09 |
| 5571342 | Decarburized steel sheet for thin oriented silicon steel sheet having improved coating/magnetic characteristics and method of producing the same | Yasuyuki Hayakawa, Katsuo Iwamoto, Makoto Watanabe | 1996-11-05 |
| 5342454 | Method of producing grain oriented silicon steel sheet having low iron loss | Yasuyuki Hayakawa, Ujihiro Nishiike, Bunjiro Fukuda, Masataka Yamada, Yoshiaki Iida +1 more | 1994-08-30 |
| 5330586 | Method of producing grain oriented silicon steel sheet having very excellent magnetic properties | Yasuyuki Hayakawa, Katsuo Iwamoto, Makoto Watanabe, Toshito Takamiya | 1994-07-19 |
| 5306353 | Method of producing grain oriented silicon steel sheets having less iron loss | Yasuyuki Hayakawa, Takahiro Kan, Hirotake Ishitobi, Katsuo Iwamoto | 1994-04-26 |
| 5269853 | Decarburized steel sheet for thin oriented silicon steel sheet having improved coating/magnetic characteristics and method of producing the same | Yasuyuki Hayakawa, Katsuo Iwamoto, Makoto Watanabe | 1993-12-14 |
| 5244511 | Method of manufacturing an oriented silicon steel sheet having improved magnetic flux density | Mitsumasa Kurosawa, Yasuyuki Hayakawa, Takahiro Kan, Toshio Sadayori | 1993-09-14 |
| 5181972 | Process for producing grain oriented silicon steel sheets having excellent magnetic properties | Mitsumasa Kurosawa, Yasuyuki Hayakawa, Yoshiaki Iida, Toshio Sadayori | 1993-01-26 |
| 5173128 | Method of producing oriented silicon steel sheet having very high magnetic flux density | Toshio Sadayori, Katsuo Iwamoto, Yasuyuki Hayakawa, Takahiro Kan | 1992-12-22 |
| 5173129 | Grain-oriented silicon steel sheet having a low iron loss free from deterioration due to stress-relief annealing and a method of producing the same | Ujihiro Nishiike, Yoshiaki Iida, Isao Matoba | 1992-12-22 |
| 5139582 | Method of manufacturing an oriented silicon steel sheet having improved magnetic characeristics | Mitsumasa Kurosawa, Katsuo Iwamoto, Takahiro Kan, Toshio Sadayori | 1992-08-18 |
| 5127971 | Method of producing grain oriented silicon steel sheets having improved magnetic properties and bending properties by electrolytic degreasing | Yasuyuki Hayakawa, Mitsumasa Kurosawa, Takahiro Kan, Toshio Sandayori | 1992-07-07 |
| 5013372 | Semi-process non-oriented electromagnetic steel strip having low core loss and high magnetic permeability, and method of making | Atsuhito Honda, Ko Matsumura, Keiji Nishimura | 1991-05-07 |
| 4952253 | Grain-oriented silicon steel sheet having a low iron loss free from deterioration due to stress-relief annealing and a method of producing the same | Ujihiro Nishiike, Yoshiaki Iida, Isao Matoba | 1990-08-28 |
| 4946519 | Semi-processed non-oriented electromagnetic steel strip having low core loss and high magnetic permeability, and method of making | Atsuhito Honda, Ko Matsumura, Keiji Nishimura | 1990-08-07 |
| 4938806 | Method for producing an electro-magnetic steel sheet | Atsuhito Honda, Ko Matsumura | 1990-07-03 |
| 4655854 | Grain-oriented silicon steel sheet having a low iron loss free from deterioration due to stress-relief annealing and a method of producing the same | Ujihiro Nishiike, Yoshiaki Iida, Isao Matoba | 1987-04-07 |
| 4249966 | Method of forming a forsterite insulating film on the surface of a grain-oriented silicon steel sheet | Toshio Ichida, Hiroshi Shimanaka | 1981-02-10 |
| 4190469 | Method for forming forsterite insulating film on an oriented silicon steel sheet | Toshio Ichida, Hiroshi Shimanaka | 1980-02-26 |