Issued Patents All Time
Showing 25 most recent of 76 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12113383 | Charging system, charging method, and non-transitory computer-readable recording medium for terminating of charge based on decreaser battery voltage | Tatsuya Miwa, Yu OTA | 2024-10-08 |
| 11879687 | Method of designing heat exchanger group and processing plant | Satoru Kanazawa, Toshikazu Miyashita | 2024-01-23 |
| 11642770 | Tool system | — | 2023-05-09 |
| 11396907 | Thrust washer | Shuichirou Hamanaka | 2022-07-26 |
| 10944277 | Power tool charging device and power tool charging system | Tatsuya Miwa, Naoki Tsuruta | 2021-03-09 |
| 10886573 | Battery pack and electric device including battery pack | Norihiro Iwamura | 2021-01-05 |
| 10749353 | Electric power tool | Naoki Tsuruta, Tatsuya Miwa | 2020-08-18 |
| 10468648 | Battery pack for electric power tool | Akira Kawai, Naoki Tsuruta | 2019-11-05 |
| 10263543 | Electric tool system | Naoki Tsuruta, Akira Kawai | 2019-04-16 |
| 9847523 | Battery pack | Norihiro Iwamura, Masaaki Sakaue, Naoki Shimizu | 2017-12-19 |
| 9800660 | Communication device, communication system and communication method | Yoichi Masuda, Tomoya Watanabe, Keiji Sakaguchi, Hirotatsu Shinomiya, Seiji Nimura | 2017-10-24 |
| 9746860 | Electric tool adaptor and electric tool system using same | Masaaki Sakaue, Akira Kawai | 2017-08-29 |
| 9553534 | Electric power tool | Tatsuya Miwa, Naoki Tsuruta | 2017-01-24 |
| 9430928 | Power tool system | Tatsuya Miwa, Naoki Tsuruta | 2016-08-30 |
| 9287721 | Charger, adapter and charging system | Tatsuya Miwa | 2016-03-15 |
| 9257853 | Battery pack | Masaaki Okada, Norihiro Iwamura, Motoharu Muto | 2016-02-09 |
| 9178380 | Charger apparatus capable of determining deterioration of second battery | Akira Kawai, Masaaki Sakaue, Toshiharu Ohashi | 2015-11-03 |
| 9166421 | Secondary battery pack discharge system | Naoki Tsuruta | 2015-10-20 |
| 9142993 | Charge circuit, and battery-charger assemblage with the charge circuit | Akira Kawai | 2015-09-22 |
| 9041322 | Electric power tool | Hidenori Shimizu, Masaaki Sakaue, Naotake Tanaka, Masaaki Okada | 2015-05-26 |
| 8963458 | Rechargeable electric tool and method for manufacturing rechargeable electric tool | Motoharu Muto, Masamichi Nakamura | 2015-02-24 |
| 8872451 | Motor device and power tool | Norihiro Iwamura | 2014-10-28 |
| 8689900 | Rotary tool | Tatsuya Miwa | 2014-04-08 |
| 8643339 | Battery pack including a status detection unit to detect an abnormal status and a notification unit to notify a user of an availability to restart a discharging operation | Norihiro Iwamura, Motoharu Muto, Naoki Shimizu, Atsumasa Kubota, Masaaki Okada +1 more | 2014-02-04 |
| 8633824 | Charger | Tatsuya Miwa, Atsumasa Kubota, Norihiro Iwamura, Masaaki Okada, Naoki Tsuruta | 2014-01-21 |