Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5696578 | Frequency tracking method and apparatus, and Doppler velocity meter using the same | Yasuhiko Ishida, Hidejiro Kadowaki, Makoto Takamiya, Jun Ashiwa, Shigeki Kato | 1997-12-09 |
| 5618652 | Image formation method by silver salt diffusion transfer | Hisashi Okada, Kazumi Nii | 1997-04-08 |