Issued Patents All Time
Showing 25 most recent of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12346068 | Stepping motor control device, movement, timepiece, and stepping motor control method | Kazuo Kato, Kazumi Sakumoto, Akihito Okumura | 2025-07-01 |
| 11415940 | Timepiece movement and timepiece | Katsuya MUGISHIMA | 2022-08-16 |
| 11382153 | Communication system, communication method, electronic timepiece, and communication apparatus | Takayuki Nomura, Tamotsu Maesawa | 2022-07-05 |
| 11316454 | Stepping motor control device, timepiece and method for controlling stepping motor | Akihito Okumura, Kosuke Yamamoto, Kenji Ogasawara | 2022-04-26 |
| 10712712 | Timepiece | Satoshi Sakai | 2020-07-14 |
| 10422809 | Electronic apparatus and program | Akira Takakura, Hiroshi Shimizu, Keisuke Tsubata, Takehiro Tagawa, Ryota Shinayama | 2019-09-24 |
| 10180662 | Electronic timepiece and program | Kenji Ogasawara | 2019-01-15 |
| 10132627 | Electronic device, measurement data processing method, and measurement data processing program | Keisuke Tsubata, Kazuo Kato, Takanori Hasegawa, Hisao Nakamura, Katsuya MUGISHIMA +1 more | 2018-11-20 |
| 10067480 | Time correction system, electronic device, timepiece, and program | Kenji Ogasawara, Akira Takakura, Kazumi Sakumoto, Tamotsu Maesawa, Kazuhiro Koyama +2 more | 2018-09-04 |
| 10037009 | Movement and electronic timepiece | Katsuya MUGISHIMA, Satoshi Sakai, Kenji Ogasawara | 2018-07-31 |
| 9971304 | Movement and electronic timepiece | Satoshi Sakai, Katsuya MUGISHIMA, Kenji Ogasawara | 2018-05-15 |
| 9971310 | Movement and electronic timepiece | Satoshi Sakai, Katsuya MUGISHIMA, Kenji Ogasawara | 2018-05-15 |
| 9800333 | Electronic device, communication method and recording medium | Kenji Ogasawara, Akira Takakura, Kazumi Sakumoto, Tamotsu Maesawa, Kazuhiro Koyama +2 more | 2017-10-24 |
| 9546882 | Electronic apparatus and program | Akira Takakura, Hiroshi Shimizu, Keisuke Tsubata, Takehiro Tagawa, Ryota Shinayama +1 more | 2017-01-17 |
| 9442465 | Electronic timepiece and control method of electronic timepiece | Kosuke Yamamoto, Kenji Ogasawara, Kazuhiro Koyama, Kazumi Sakumoto, Tamotsu Maesawa +2 more | 2016-09-13 |
| 9092015 | Electronic timepiece | Kazuo Kato, Akira Takakura, Takanori Hasegawa, Toshitaka Fukushima | 2015-07-28 |
| 9076371 | Display device and electronic apparatus using display device | Kazuo Kato, Akira Takakura, Keisuke Tsubata, Hisao Nakamura, Yoshinori Sugai +4 more | 2015-07-07 |
| 9036455 | Electronic timepiece | Kazuo Kato, Akira Takakura, Takanori Hasegawa, Toshitaka Fukushima | 2015-05-19 |
| 8982675 | Power supply unit and electronic timepiece | Kazuo Kato, Akira Takakura, Toshitaka Fukushima, Keisuke Tsubata, Hisao Nakamura +4 more | 2015-03-17 |
| 8586938 | Ultraviolet ray measuring apparatus and electronic wristwatch equipped with ultraviolet ray measuring function | Keisuke Tsubata, Satoshi Sakai, Hisao Nakamura, Eriko Noguchi, Kazuo Kato +1 more | 2013-11-19 |
| 8406086 | Electronic timepiece | Hiroshi Shimizu, Kenji Ogasawara, Kazuo Kato, Kazumi Sakumoto, Akira Takakura +5 more | 2013-03-26 |
| 8295131 | Chronograph timepiece | Kazuo Kato, Akira Takakura, Kenji Ogasawara, Saburo Manaka, Kazumi Sakumoto +5 more | 2012-10-23 |
| 8289816 | Chronograph timepiece | Kazuo Kato, Akira Takakura, Kenji Ogasawara, Saburo Manaka, Kazumi Sakumoto +5 more | 2012-10-16 |
| 8274863 | Chronograph timepiece | Kenji Ogasawara, Kazuo Kato, Kazumi Sakumoto, Hiroshi Shimizu, Akira Takakura +5 more | 2012-09-25 |
| 8223594 | Chronograph timepiece | Kenji Ogasawara, Kazuo Kato, Kazumi Sakumoto, Hiroshi Shimizu, Akira Takakura +5 more | 2012-07-17 |