Issued Patents All Time
Showing 1–25 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12429828 | Watch | Kosuke Yamamoto, Akihito Okumura | 2025-09-30 |
| 12346068 | Stepping motor control device, movement, timepiece, and stepping motor control method | Kazuo Kato, Tomohiro Ihashi, Akihito Okumura | 2025-07-01 |
| 11909347 | Stepping motor control device, movement, timepiece, and stepping motor control method | Akihito Okumura, Kosuke Yamamoto, Tetsuya Nobe | 2024-02-20 |
| 11424702 | Motor driving apparatus, motor driving method, and timepiece | Tetsuya Nobe, Satoshi Sakai, Kosuke Yamamoto, Akihito Okumura | 2022-08-23 |
| 10831158 | Timepiece, motor control device, control method of timepiece, and motor control method | — | 2020-11-10 |
| 10228660 | Electronic apparatus and control method | Tamotsu Maesawa, Keisuke Tsubata, Tetsuya Nobe | 2019-03-12 |
| 10203664 | Electronic timepiece | Kotaro Watanabe, Minoru Sano | 2019-02-12 |
| 10180661 | Frequency division circuit, method of controlling frequency division circuit, and analog electronic timepiece | — | 2019-01-15 |
| 10067480 | Time correction system, electronic device, timepiece, and program | Kenji Ogasawara, Akira Takakura, Tamotsu Maesawa, Kazuhiro Koyama, Tomohiro Ihashi +2 more | 2018-09-04 |
| 9800333 | Electronic device, communication method and recording medium | Kenji Ogasawara, Akira Takakura, Tamotsu Maesawa, Kazuhiro Koyama, Tomohiro Ihashi +2 more | 2017-10-24 |
| 9442465 | Electronic timepiece and control method of electronic timepiece | Kosuke Yamamoto, Kenji Ogasawara, Kazuhiro Koyama, Tamotsu Maesawa, Tomohiro Ihashi +2 more | 2016-09-13 |
| 9190941 | Stepping motor control circuit, movement, and analog electronic timepiece | Saburo Manaka, Kenji Ogasawara, Keishi Honmura, Kosuke Yamamoto, Satoshi Sakai | 2015-11-17 |
| 9182746 | Stepping motor control circuit, movement and analog electronic timepiece | Kosuke Yamamoto, Saburo Manaka, Kenji Ogasawara, Keishi Honmura, Satoshi Sakai | 2015-11-10 |
| 9086685 | Stepping motor control circuit, movement, and analogue electronic timepiece | Kosuke Yamamoto, Akira Takakura, Kenji Ogasawara, Saburo Manaka, Keishi Honmura | 2015-07-21 |
| 8873344 | Power consumption control device, timepiece device, electronic device, power consumption control method, power consumption control program | Hiroshi Shimizu, Kenji Ogasawara, Kosuke Yamamoto, Keishi Honmura, Saburo Manaka +1 more | 2014-10-28 |
| 8810186 | Motor drive device, timepiece device, and electronic device | Shotaro Kamiyama, Kenji Ogasawara, Saburo Manaka, Keishi Honmura, Hiroshi Shimizu +1 more | 2014-08-19 |
| 8721170 | Stepping motor control circuit, movement, and analogue electronic timepiece | Saburo Manaka, Kenji Ogasawara, Keishi Honmura, Kosuke Yamamoto | 2014-05-13 |
| 8699304 | Electronic device, electronic device control method, and electronic device control program | Keishi Honmura, Saburo Manaka, Kosuke Yamamoto, Kenji Ogasawara, Hiroshi Shimizu | 2014-04-15 |
| 8569991 | Stepping motor control circuit and analogue electronic watch | Saburo Manaka, Akira Takakura, Kenji Ogasawara, Shotaro Kamiyama, Keishi Honmura +2 more | 2013-10-29 |
| 8406086 | Electronic timepiece | Hiroshi Shimizu, Tomohiro Ihashi, Kenji Ogasawara, Kazuo Kato, Akira Takakura +5 more | 2013-03-26 |
| 8351303 | Stepping motor controller and analog electronic timepiece | Kenji Ogasawara, Akira Takakura, Saburo Manaka, Keishi Honmura, Takanori Hasegawa +2 more | 2013-01-08 |
| 8335135 | Stepping motor control circuit and analogue electronic timepiece | Saburo Manaka, Akira Takakura, Kenji Ogasawara, Kazuo Kato, Keishi Honmura +3 more | 2012-12-18 |
| 8319468 | Stepping motor control circuit and analogue electronic timepiece | Saburo Manaka, Takanori Hasegawa, Keishi Honmura, Kasuke Yamamoto, Kenji Ogasawara +3 more | 2012-11-27 |
| 8295131 | Chronograph timepiece | Kazuo Kato, Akira Takakura, Kenji Ogasawara, Saburo Manaka, Hiroshi Shimizu +5 more | 2012-10-23 |
| 8289816 | Chronograph timepiece | Kazuo Kato, Akira Takakura, Kenji Ogasawara, Saburo Manaka, Hiroshi Shimizu +5 more | 2012-10-16 |