Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12218394 | Power feed circuit comprising a synthesizing-distributing unit and a phase shifting unit configured for feeding a two point or a four point circularly polarized antenna | — | 2025-02-04 |
| 11962076 | Antenna device | — | 2024-04-16 |
| 11683059 | Noise reduction device | — | 2023-06-20 |
| 11233318 | Vehicle-body-embedded antenna device | Ryuji Kobayashi, Jun Ishida | 2022-01-25 |
| 10468761 | Low-profile antenna device | Jun Ishida | 2019-11-05 |
| 9985339 | Low-profile antenna device | — | 2018-05-29 |
| 9183871 | Optical recording device, optical recording method and multi-layer disk | Kenichi Shimomai | 2015-11-10 |
| 7184379 | Optical disk recording/reproducing method and apparatus in which recording properties of the disk are detected when recording speed is changed | Akira Tsukihashi, Toru Tanaka, Yasushi Hanamoto, Shinji Seki, Toshihiko Hiroshima | 2007-02-27 |
| 7120099 | Laser output circuit for optical disk recording apparatus | Toshihiko Hiroshima | 2006-10-10 |
| 6016128 | GPS wave antenna apparatus | Tatsuaki Taniguchi, Kazuo Shigeta | 2000-01-18 |
| 5973644 | Planar antenna | Misao Haneishi | 1999-10-26 |