Issued Patents All Time
Showing 1–25 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10147527 | Grain-oriented electrical steel sheet and method for manufacturing same | Shigehiro Takajo, Seiji Okabe, Hirotaka Inoue | 2018-12-04 |
| RE39482 | Method of making grain-oriented magnetic steel sheet having low iron loss | Yasuyuki Hayakawa, Mitsumasa Kurosawa | 2007-02-06 |
| 6929704 | Grain-oriented electromagnetic steel sheet | Toshito Takamiya, Kunihiro Senda | 2005-08-16 |
| 6758915 | Grain oriented electromagnetic steel sheet exhibiting extremely small watt loss and method for producing the same | Minoru Takashima, Mineo Muraki, Hiroi Yamaguchi, Mitsumasa Kurosawa | 2004-07-06 |
| 6676771 | Method of manufacturing grain-oriented electrical steel sheet | Minoru Takashima, Tetsuo Toge, Yasuyuki Hayakawa, Mitsumasa Kurosawa | 2004-01-13 |
| 6531001 | Non-oriented magnetic steel sheet having low iron loss and high magnetic flux density and manufacturing method therefor | Yasuyuki Hayakawa, Mitsumasa Kurosawa, Masaki Kawano, Yuka Komori, Kazuaki Tamura | 2003-03-11 |
| 6444050 | Grain-oriented electromagnetic steel sheet | Toshito Takamiya, Kunihiro Senda | 2002-09-03 |
| 6444051 | Method of manufacturing a grain-oriented electromagnetic steel sheet | Kazuaki Tamura, Mitsumasa Kurosawa | 2002-09-03 |
| 6436199 | Non-oriented magnetic steel sheet having low iron loss and high magnetic flux density and manufacturing method therefor | Yasuyuki Hayakawa, Mitsumasa Kurosawa, Masaki Kawano, Yuka Komori, Kazuaki Tamura | 2002-08-20 |
| 6432227 | Electromagnetic steel sheet and process for producing the same | Yasuyuki Hayakawa, Mitsumasa Kurosawa | 2002-08-13 |
| 6423157 | Method of making grain-oriented magnetic steel sheet having low iron loss | Yasuyuki Hayakawa, Mitsumasa Kurosawa | 2002-07-23 |
| 6406558 | Method for manufacturing magnetic steel sheet having superior workability and magnetic properties | Mitsumasa Kurosawa, Masaki Kawano, Keiji Sakai, Toshiro Fujiyama | 2002-06-18 |
| 6364963 | Grain oriented electrical steel sheet having very low iron loss and production process for same | Toshito Takamiya, Kunihiro Senda | 2002-04-02 |
| 6331215 | Process for producing grain-oriented electromagnetic steel sheet | Tetsuo Toge, Atsuhito Honda, Kenichi Sadahiro, Kunihiro Senda | 2001-12-18 |
| 6322635 | Electromagnetic steel sheet and process for producing the same | Yasuyuki Hayakawa, Mitsumasa Kurosawa | 2001-11-27 |
| 6309473 | Method of making grain-oriented magnetic steel sheet having low iron loss | Yasuyuki Hayakawa, Mitsumasa Kurosawa | 2001-10-30 |
| 6136456 | Grain oriented electrical steel sheet and method | Hiroi Yamaguchi, Minoru Takashima, Mineo Muraki | 2000-10-24 |
| 6110298 | Grain-oriented electrical steel sheet excellent in magnetic characteristics and production process for same | Kunihiro Senda, Toshito Takamiya | 2000-08-29 |
| 6103022 | Grain oriented electrical steel sheet having very low iron loss and production process for same | Toshito Takamiya, Kunihiro Senda | 2000-08-15 |
| 6083326 | Grain-oriented electromagnetic steel sheet | Toshito Takamiya, Kunihiro Senda | 2000-07-04 |
| 6039818 | Grain-oriented electromagnetic steel sheet and process for producing the same | Tetsuo Toge, Atsuhito Honda, Kenichi Sadahiro, Kunihiro Senda | 2000-03-21 |
| RE36423 | 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 | 1999-12-07 |
| 5885371 | Method of producing grain-oriented magnetic steel sheet | Toshito Takamiya, Kunihiro Senda, Mineo Muraki, Chizuko Goto, Mitsumasa Kurosawa +1 more | 1999-03-23 |
| 5853499 | Grain-oriented electrical steel sheet and method of manufacturing the same | Kunihiro Senda, Takafumi Suzuki, Hiroaki Toda, Hiroi Yamaguchi | 1998-12-29 |
| 5725681 | Process for producing grain oriented silicon steel sheet, and decarburized sheet | Hirotake Ishitobi, Takafumi Suzuki, Hiroi Yamaguchi | 1998-03-10 |