Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12378652 | Fe-based amorphous alloy ribbon, production method thereof, iron core, and transformer | Hajime Itagaki, Morifumi Kuroki, Makoto Sasaki | 2025-08-05 |
| 12264389 | Fe-based amorphous alloy ribbon, production method thereof, iron core, and transformer | Hajime Itagaki, Morifumi Kuroki, Makoto Sasaki | 2025-04-01 |
| 11952651 | Fe-based amorphous alloy ribbon, production method thereof, iron core, and transformer | Hajime Itagaki, Morifumi Kuroki, Makoto Sasaki | 2024-04-09 |
| 11802328 | Fe-based amorphous alloy ribbon, iron core, and transformer | Hajime Itagaki, Morifumi Kuroki, Makoto Sasaki | 2023-10-31 |
| 11521782 | Transformer | Hajime Itagaki | 2022-12-06 |
| 7787777 | Optical packet network system | Shinji Iio, Masayuki Suehiro, Katsuya Ikezawa, Akira Miura, Sadaharu Oka +7 more | 2010-08-31 |
| 7656149 | Current transformer and electric energy meter | — | 2010-02-02 |
| 7317848 | Optical switch | Shinji Iio, Masayuki Suehiro, Yoshiyuki Asano, Chie Sato, Akira Miura +3 more | 2008-01-08 |
| 7116856 | Optical switch matrix | Shinji Iio, Masayuki Suehiro, Yoshiyuki Asano, Chie Sato, Akira Miura +3 more | 2006-10-03 |
| 6930623 | Optical signal processing system | Shinji Iio, Masayuki Suehiro, Yoshiyuki Asano, Hiroyuki Matsuura, Akira Miura +4 more | 2005-08-16 |
| 6891986 | Optical switch | Shinji Iio, Masayuki Suehiro, Yoshiyuki Asano, Akira Miura, Tsuyoshi Yakihara +7 more | 2005-05-10 |
| 6693713 | Mark detection method, exposure method, device manufacturing method, mark detection apparatus, exposure apparatus, and device | — | 2004-02-17 |
| 6504737 | Magnetic core for saturable reactor, magnetic amplifier type multi-output switching regulator and computer having magnetic amplifier type multi-output switching regulator | Hirohiko Miki, Sadami Kubota, Mutsuhito Sakaguchi | 2003-01-07 |
| 6270592 | Magnetic core for saturable reactor, magnetic amplifier type multi-output switching regulator and computer having magnetic amplifier type multi-output switching regulator | Hirohiko Miki, Sadami Kubota, Mutsuhito Sakaguchi | 2001-08-07 |
| 5952856 | Inductive load driving method and H-bridge circuit control device | Kenji Horiguchi, Tomoaki Nishi | 1999-09-14 |
| 5850336 | Apparatus having an inverter | — | 1998-12-15 |
| 5725686 | Magnetic core for pulse transformer and pulse transformer made thereof | Yoshihito Yoshizawa, Yoshio Bizen, Shunsuke Arakawa | 1998-03-10 |
| 5635828 | Active filter circuit and power supply apparatus including same | Yoshihito Yoshizawa, Tooru Abe, Shunsuke Arakawa | 1997-06-03 |
| 5623171 | High-voltage pulse generating circuit and electrostatic recipitator containing it | — | 1997-04-22 |
| 5611871 | Method of producing nanocrystalline alloy having high permeability | Yoshihito Yoshizawa, Yoshio Bizen, Shunsuke Arakawa | 1997-03-18 |
| 5541726 | Relative azimuth measuring method and apparatus | — | 1996-07-30 |
| 5486404 | Nano-crystalline soft magnetic alloy ribbon with insulation coating and magnetic core made therefrom and pulse generator, laser unit and accelerator therewith | Michiyuki Fukushima, Noriyoshi Hirao | 1996-01-23 |
| 5443664 | Surge current-suppressing circuit and magnetic device therein | Noriyoshi Hirao, Kiyotaka Yamauchi, Osamu Shimoe | 1995-08-22 |
| 5289494 | Distributed feedback semiconductor laser | Kunio Tada, Yoshiaki Nakano, Takeshi Inoue, Yi Luo, Takeshi Irita +1 more | 1994-02-22 |
| 5184085 | High-voltage pulse generating circuit, and discharge-excited laser and accelerator containing such circuit | Hiroyuki Aoyama, Rihito Kagawa, Osamu Shimoe | 1993-02-02 |