Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11128104 | Wavelength-tunable light source and wavelength control method for the same | Katsumi Uesaka | 2021-09-21 |
| 9531479 | Method of monitoring wavelength of optical signal output from light emitting element and optical signal monitoring circuit | Keiji Tanaka | 2016-12-27 |
| 8902938 | Method to tune emission wavelength of wavelength tunable laser diode | — | 2014-12-02 |
| 5179646 | Frame processing system capable of expanding and contracting a frame | Yasushi Kawakami, Keiichi Hirata, Yoshimi Itagaki, Tomohiro Ban, Akihiro Furukawa | 1993-01-12 |
| 4995739 | Text editing device for erasing hyphenated words located on two lines | Keiichi Hirata, Yasushi Kawakami, Miyako Mukai, Tomohiro Ban, Akihiro Furukawa | 1991-02-26 |
| 4981375 | Non-printing carriage movement to indicate margin size | Yasushi Kawakami, Atsuko Kawasumi, Keiichi Hirata, Tomohiro Ban, Akihiro Furukawa | 1991-01-01 |
| 4924433 | Word processor with attribute functions | Keiichi Hirata, Yoshinari Morimoto, Tomohiro Ban, Tokihito Furushima, Yoshie Ikeda +1 more | 1990-05-08 |
| 4839827 | Document processing apparatus | Keiiti Hirata, Yoshinari Morimoto, Tomohiro Ban, Tokihito Furushima, Yoshie Ikeda | 1989-06-13 |
| 4812832 | Input control device | Minoru Oishi, Yoshinari Morimoto, Akihiro Furukawa, Yoshie Ikeda, Akemi Nagatsuna | 1989-03-14 |