Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5591276 | Magnetic alloy with ultrafine crystal grains and method of producing same | Yoshihito Yoshizawa, Yoshio Bizen, Shigekazu Suwabe, Toshikazu Nishiyama | 1997-01-07 |
| 5443664 | Surge current-suppressing circuit and magnetic device therein | Shin Nakajima, Noriyoshi Hirao, Osamu Shimoe | 1995-08-22 |
| 5337033 | Permanent magnet assembly for stably fixing denture | Yohsuke Kinouchi, Minoru Ai, Hiroshi Mizutani, Osamu Okuno, Akira Yamataka +1 more | 1994-08-09 |
| 5160379 | Fe-base soft magnetic alloy and method of producing same | Yoshihito Yoshizawa, Shigeru Oguma | 1992-11-03 |
| 5151137 | Soft magnetic alloy with ultrafine crystal grains and method of producing same | Yoshihito Yoshizawa, Yoshio Bizen, Toshikazu Nishiyama, Shigekazu Suwabe | 1992-09-29 |
| 5114503 | Magnetic core | Yoshihito Yoshizawa | 1992-05-19 |
| 5083366 | Method for making wound magnetic core | Shunsuke Arakawa, Noriyoshi Hirao | 1992-01-28 |
| 5072205 | Wound magnetic core | Shunsuke Arakawa, Noriyoshi Hirao | 1991-12-10 |
| 5069731 | Low-frequency transformer | Yoshihito Yoshizawa | 1991-12-03 |
| 4985089 | Fe-base soft magnetic alloy powder and magnetic core thereof and method of producing same | Yoshihito Yoshizawa | 1991-01-15 |
| 4983859 | Magnetic device for high-voltage pulse generating apparatuses | Shin Nakajima, Akira Yamataka, Hideaki Shimizu, Shunsuke Arakawa | 1991-01-08 |
| 4945339 | Anti-theft sensor marker | Yoshihito Yoshizawa | 1990-07-31 |
| 4918555 | Magnetic head containing an Fe-base soft magnetic alloy layer | Yoshihito Yoshizawa, Toshikazu Nishiyama, Shigekazu Suwabe | 1990-04-17 |
| 4881989 | Fe-base soft magnetic alloy and method of producing same | Yoshihito Yoshizawa, Shigeru Oguma | 1989-11-21 |
| 4871925 | High-voltage pulse generating apparatus | Yoshihito Yoshizawa, Shin Nakajima | 1989-10-03 |
| 4827214 | Method for measuring losses of a magnetic core | Shin Nakajima | 1989-05-02 |
| 4811187 | DC-DC converter with saturable reactor reset circuit | Shin Nakajima, Osamu Shimoe | 1989-03-07 |
| 4769091 | Magnetic core | Yoshihito Yoshizawa, Shin Nakajima | 1988-09-06 |
| 4757219 | Lamination type of magnetostrictor and manufacturing method thereof | Yoshihito Yoshizawa, Kiyoshi Koyano | 1988-07-12 |