Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6411078 | Current sensor apparatus | Kazuyuki Itoh, Katsuaki Tanaka, Katsumi Yabusaki | 2002-06-25 |
| 6323634 | Magnetic sensor apparatus, current sensor apparatus and magnetic sensor element | Katsuaki Tanaka, Katsumi Yabusaki, Yoshihisa Okita | 2001-11-27 |
| 6316931 | Magnetic sensor apparatus and current sensor apparatus | Kazuyuki Itoh, Yoshihisa Okita, Katsumi Yabusaki | 2001-11-13 |
| 6316939 | Magnetic sensor measuring apparatus and current sensor non-contact measuring apparatus | Katsumi Yabusaki | 2001-11-13 |
| 6194121 | Optical recording medium | Kenryo Namba, Akihiko Kuroiwa | 2001-02-27 |
| 5741623 | Optical recording medium | Kenryo Namba, Akihiko Kuroiwa | 1998-04-21 |
| 5670295 | Optical recording medium | Kenryo Namba, Akihiko Kuroiwa | 1997-09-23 |
| 5652382 | Humidity meter | Atsuko Tsuchida, Eiji Takahashi, Kenji Aizawa | 1997-07-29 |
| 5531097 | Absolute humidity meter | Atsuko Tsuchida | 1996-07-02 |
| 5515723 | Humidity meter | Atsuko Tsuchida | 1996-05-14 |
| 5512416 | Optical recording medium | Kenryo Namba, Akihiko Kuroiwa | 1996-04-30 |
| 5396796 | Humidity meter | Tsutomu Kotani | 1995-03-14 |
| 5317274 | Humidity meter | Atsuko Tsuchida | 1994-05-31 |
| 5310425 | Toner concentration detector for a two-component developer | Taisuke Domon, Takehiro Imai, Eiji Takahishi | 1994-05-10 |
| 5305005 | Analog to digital converter system | Atsuko Tsuchida, Eiji Takahashi | 1994-04-19 |
| 5065625 | Humidity meter | Taisuke Domon, Takehiro Imai, Atsuko Tsuchida | 1991-11-19 |
| 4599718 | Method for erasing a light recording medium | Akihiko Kuroiwa, Kenryo Nanba | 1986-07-08 |
| 4530080 | Optical recording/reproducing system | Toshiki Aoi | 1985-07-16 |
| 4516234 | Optical recording system | Akihiko Kuroiwa | 1985-05-07 |
| 4412231 | Light recording medium | Kenryo Namba, Akihiko Kuroiwa | 1983-10-25 |
| 4246600 | Color image pick-up system for a color television system | Kiyoshi Matsui | 1981-01-20 |
| 4222084 | Magnetic head | Toshiki Aoi | 1980-09-09 |