Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12230505 | Etching apparatus | Masanobu Honda, Hikaru Watanabe | 2025-02-18 |
| 11462412 | Etching method | — | 2022-10-04 |
| 11440137 | Laser peening device and laser peening method | Souichi Ueno, Hiroya ICHIKAWA, Kazuki Kora | 2022-09-13 |
| 11264246 | Plasma etching method for selectively etching silicon oxide with respect to silicon nitride | Hikaru Watanabe | 2022-03-01 |
| 11205577 | Method of selectively etching silicon oxide film on substrate | Hikaru Watanabe | 2021-12-21 |
| 10580655 | Plasma etching method for selectively etching silicon oxide with respect to silicon nitride | Hikaru Watanabe | 2020-03-03 |
| 10553442 | Etching method | — | 2020-02-04 |
| 10224211 | Etching method | Hikaru Watanabe | 2019-03-05 |
| 10109495 | Plasma etching method for selectively etching silicon oxide with respect to silicon nitride | Hikaru Watanabe | 2018-10-23 |
| 9918150 | PON system, station side apparatus, and subscriber side apparatus | — | 2018-03-13 |
| 9754797 | Etching method for selectively etching silicon oxide with respect to silicon nitride | Hikaru Watanabe | 2017-09-05 |
| 9633864 | Etching method | Hikaru Watanabe | 2017-04-25 |
| 9330973 | Workpiece processing method | Hikaru Watanabe, Masanobu Honda | 2016-05-03 |
| 6710272 | Key switch | — | 2004-03-23 |
| 6572950 | Laminate key sheet | — | 2003-06-03 |
| 5820809 | Manufacturing method for key tops | Hiroshi Yajima, Masayuki Kashino, Masaru Nakajo, Motoshi Yamauchi, Nobuaki Oji | 1998-10-13 |
| 5139718 | Method of manufacturing products of ceramics | Mitsugu Suzuki, Jyunichi Doi, Shigeru Hanzawa | 1992-08-18 |