Issued Patents All Time
Showing 25 most recent of 65 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12007348 | Method for driving gas sensor, and gas detection device | Kazunari Homma, Koji Katayama, Ken Kawai | 2024-06-11 |
| 11788999 | Sensor device and gas monitoring system | Zhiqiang Wei, Shinichi Yoneda, Ryoichi Suzuki | 2023-10-17 |
| 11541737 | Gas detection device, gas detection system, fuel cell vehicle, and gas detection method | Kazunari Homma, Koji Katayama, Zhiqiang Wei | 2023-01-03 |
| 10900926 | Gas sensor, gas detection apparatus, fuel cell powered vehicle, and manufacturing method of gas sensor | Koji Katayama, Zhiqiang Wei, Kazunari Homma | 2021-01-26 |
| 10309916 | Gas-detecting apparatus including gas sensor and method of detecting hydrogen using gas sensor | Satoru Fujii, Kazunari Homma, Zhiqiang Wei | 2019-06-04 |
| 10281420 | Gas-detecting apparatus including gas sensor and method of detecting hydrogen using gas sensor | Kazunari Homma, Zhiqiang Wei, Koji Katayama | 2019-05-07 |
| 9829521 | Estimation method, estimation device, and inspection device for variable resistance element, and nonvolatile memory device | Zhiqiang Wei, Takeki Ninomiya, Takeshi Takagi | 2017-11-28 |
| 9390797 | Driving method of variable resistance element and non-volatile memory device | Satoru Mitani, Takeshi Takagi, Koji Katayama | 2016-07-12 |
| 9336881 | Variable resistance nonvolatile memory device including a variable resistance layer that changes reversibly between a low resistance state and a high resistance state according to an applied electrical signal | Kazuhiko Shimakawa, Ryotaro Azuma, Ken Kawai | 2016-05-10 |
| 9236381 | Nonvolatile memory element, nonvolatile memory apparatus, nonvolatile semiconductor apparatus, and method of manufacturing nonvolatile memory element | Satoru Fujii, Takeshi Takagi, Koichi Osano, Kazuhiko Shimakawa | 2016-01-12 |
| 9183926 | Method for driving nonvolatile storage element, and nonvolatile storage device | Takeshi Takagi, Yoshihiko Kanzawa | 2015-11-10 |
| 9153319 | Method for driving nonvolatile memory element, and nonvolatile memory device having a variable resistance element | Satoru Mitani, Takeshi Takagi | 2015-10-06 |
| 9111610 | Method of driving nonvolatile memory element and nonvolatile memory device | Koji Katayama, Satoru Mitani, Zhiqiang Wei, Takeshi Takagi | 2015-08-18 |
| 9111640 | Nonvolatile memory element, nonvolatile memory device, and writing method for use in nonvolatile memory element | Zhiqiang Wei, Takeshi Takagi | 2015-08-18 |
| 9082479 | Nonvolatile memory element and nonvolatile memory device | Zhiqiang Wei, Takeshi Takagi, Satoru Mitani, Koji Katayama | 2015-07-14 |
| 8902629 | Forming method of performing forming on variable resistance nonvolatile memory element, and variable resistance nonvolatile memory device | Ken Kawai, Kazuhiko Shimakawa, Koji Katayama | 2014-12-02 |
| 8867259 | Method of programming variable resistance nonvolatile memory element | Ken Kawai, Kazuhiko Shimakawa, Yoshikazu Katoh | 2014-10-21 |
| 8830730 | Variable resistance nonvolatile storage device and method of forming memory cell | Yoshihiko Kanzawa, Satoru Mitani, Koji Katayama, Kazuhiko Shimakawa, Satoru Fujii +1 more | 2014-09-09 |
| 8675387 | Variable resistance nonvolatile memory device and programming method for same | Yuichiro Ikeda, Kazuhiko Shimakawa, Yoshihiko Kanzawa, Yoshikazu Katoh | 2014-03-18 |
| 8665633 | Nonvolatile variable resistance memory element writing method, and nonvolatile variable resistance memory device | Ryotaro Azuma, Kazuhiko Shimakawa, Ken Kawai | 2014-03-04 |
| 8565005 | Nonvolatile memory element and nonvolatile memory device | Takeshi Takagi, Zhiqiang Wei, Takeki Ninomiya, Yoshihiko Kanzawa | 2013-10-22 |
| 8553444 | Variable resistance nonvolatile storage device and method of forming memory cell | Yoshihiko Kanzawa, Satoru Mitani, Koji Katayama, Kazuhiko Shimakawa, Satoru Fujii +1 more | 2013-10-08 |
| 8531869 | Nonvolatile memory device and method of writing data to nonvolatile memory device | Yoshikazu Katoh, Takeshi Takagi | 2013-09-10 |
| 8492875 | Nonvolatile memory element having a tantalum oxide variable resistance layer | Koichi Osano, Satoru Fujii | 2013-07-23 |
| 8472238 | Variable resistance nonvolatile storage device with oxygen-deficient oxide layer and asymmetric substrate bias effect | Kazuhiko Shimakawa, Yoshihiko Kanzawa, Satoru Mitani | 2013-06-25 |