Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12433173 | Magnetic film, magnetoresistive effect element, and method for manufacturing magnetic film | Yohei Shiokawa, Tomoyuki Sasaki, Koki Takanashi | 2025-09-30 |
| 12316383 | Wavelength cross connect device, multiband transmission system, and multiband transmission method | Hiroki Kawahara, Sachio Suda, Kohei Saito | 2025-05-27 |
| 12244346 | Wavelength cross connect device and wavelength cross connect method | Hiroki Kawahara, Sachio Suda, Kohei Saito | 2025-03-04 |
| 12207030 | Optical node device, optical transport network system, optical path trace method and program | Hiroki Kawahara, Sachio Suda, Kohei Saito | 2025-01-21 |
| 11979226 | Wavelength cross connect device and wavelength cross connect method | Hiroki Kawahara, Sachio Suda, Kohei Saito, Kenta Hirose | 2024-05-07 |
| 11888408 | Power conversion device and manufacturing method of power conversion device | Ayumu Hatanaka, Naoya Suto | 2024-01-30 |
| 11824583 | Cyclic wavelength band replacement device, multi-band transmission system, and cyclic wavelength band replacement method | Hiroki Kawahara, Sachio Suda, Kohei Saito, Kenta Hirose | 2023-11-21 |
| 11750317 | Wavelength cross connect device and cross connect connection method | Hiroki Kawahara | 2023-09-05 |
| 11722235 | Optical branch insertion device and optical branch insertion method | Hiroki Kawahara | 2023-08-08 |
| 11696056 | Optical transmission system and optical transmission method | Hiroto TAKECHI, Katsuhiro Araya, Masatoshi Namiki, Hiroki Kawahara | 2023-07-04 |
| 11677489 | Wavelength cross connect device, branch ratio variable method, and program | Hiroki Kawahara | 2023-06-13 |
| 11525971 | Insertion/removal error prevention system | Yuichiro Ikuma, Takafumi FUKATANI | 2022-12-13 |
| 11528080 | Optical transmission system and failure diagnosis method for optical transmission system | Hiroki Kawahara, Toshiyuki Oka, Toshihiko Seki | 2022-12-13 |
| 11424824 | OSNR spectrum estimation apparatus, OSNR spectrum estimation method, and program | Hiroki Kawahara, Kohei Saito, Tsutomu Kubo | 2022-08-23 |
| 10903754 | Power converter | Ayumu Hatanaka, Kazushi Takahashi, Kenji Ohshima | 2021-01-26 |
| 10673349 | Power conversion device with efficient cooling structure | Youhei Nishizawa, Ayumu Hatanaka | 2020-06-02 |
| 10176972 | Plasma etching apparatus comprising a nozzle oscillating unit | Yoshio Watanabe, Siry Milan, Hiroyuki Takahashi | 2019-01-08 |
| 9749061 | Digital signal processing device | Fukutaro HAMAOKA, Toshiya Matsuda, Akira Naka | 2017-08-29 |
| 8928782 | Image processing device and image capture device | — | 2015-01-06 |
| 8218891 | Filtering circuit, filter processing method, image pickup element circuit and camera | Yuri Watarai | 2012-07-10 |
| 8194984 | Image processing system that removes noise contained in image data | Tomohiro Fukuoka, Kiichiro Iga, Yuji Watarai | 2012-06-05 |
| 8085322 | Defect pixel correction circuit, image processing system using the same, and defect pixel correcting method | Yuji Watarai | 2011-12-27 |