Issued Patents All Time
Showing 1–25 of 90 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12411364 | Optical module and manufacturing method of optical module for optical communication | Keiji Tanaka, Taichi Misawa | 2025-09-09 |
| 12298332 | Output circuit with peak voltage detection | Keiji Tanaka | 2025-05-13 |
| 12210231 | Optical module and manufacturing method of optical module for optical communication | Keiji Tanaka, Taichi Misawa | 2025-01-28 |
| 12119792 | Variable gain amplifier circuit and semiconductor integrated circuit | Keiji Tanaka | 2024-10-15 |
| 11990747 | Electrostatic protection circuit and semiconductor integrated circuit | Keiji Tanaka | 2024-05-21 |
| 11869399 | Driving circuit and semiconductor integrated circuit for use in an optical communication device | Keiji Tanaka | 2024-01-09 |
| 11799288 | Electrostatic protection circuit and semiconductor integrated circuit | Keiji Tanaka | 2023-10-24 |
| 11588476 | Amplitude modulation circuit and semiconductor integrated circuit for optical communication system | Keiji Tanaka | 2023-02-21 |
| 10608605 | Circuit, receiving circuit, optical receiver, optical transmission system, and active optical cable | — | 2020-03-31 |
| 10429598 | Optical device and optical coupling module | Yoichiro Kurita, Hideto Furuyama, Fumitaka ISHIBASHI | 2019-10-01 |
| 10396060 | Semiconductor device and method for manufacturing same | Yoichiro Kurita, Hideto Furuyama | 2019-08-27 |
| 10203460 | Optical semiconductor module | Hideto Furuyama, Yoichiro Kurita, Fumitaka ISHIBASHI | 2019-02-12 |
| 10032758 | Method of manufacturing semiconductor device | Yoichiro Kurita, Hideto Furuyama, Fumitaka ISHIBASHI | 2018-07-24 |
| 9776431 | Medium conveying device and image recording apparatus | — | 2017-10-03 |
| 9749059 | Current outputting circuit and optical transmitter | — | 2017-08-29 |
| 9729249 | Amplification circuit | — | 2017-08-08 |
| 9719942 | Sintered ceramic and ceramic sphere | Hiroshi Onishi, Hiroshi Ikeda, Hiroki Takimoto, Kenji Yamada, Hideki Ono +1 more | 2017-08-01 |
| 9559655 | Amplification circuit | — | 2017-01-31 |
| 9481534 | Conveyance device, image-forming device, and medium conveyance method | Tatsuya Nitta | 2016-11-01 |
| 9463656 | Printing device | Hiroyuki Igarashi | 2016-10-11 |
| 9341776 | Optical interconnection device and method of manufacturing the same | Norio Iizuka, Kazuya Ohira, Haruhiko Yoshida, Mizunori Ezaki, Hideto Furuyama +1 more | 2016-05-17 |
| 9321072 | Coating apparatus and inkjet recording apparatus | Naoya Okano | 2016-04-26 |
| 9316599 | Device for inspecting ceramic sphere | Hiroshi Onishi, Hiroshi Ikeda, Hiroki Takimoto, Kenji Yamada, Hideki Ono +1 more | 2016-04-19 |
| 9076089 | Image processing apparatus and method for printing according to a dot-arrangement matrix | — | 2015-07-07 |
| 9039163 | Medium conveyance apparatus and image forming apparatus | Nobuaki Yoneyama | 2015-05-26 |