Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10447015 | Spark plug production method, spark plug production device and assembly inspection method | Masafumi Okuda, Kanako Nishiyama | 2019-10-15 |
| 10270229 | Spark plug production method, spark plug production device and assembly inspection method | Masafumi Okuda, Kanako Nishiyama | 2019-04-23 |
| 10205306 | Method for producing spark plug | Masafumi Okuda, Kanako Nishiyama | 2019-02-12 |
| 8298484 | Analyzing apparatus | Yasumitsu Takagi, Hisakazu Sugie, Norimasa Nishida, Yoshikiyo Hongo | 2012-10-30 |
| 7884787 | Display device and portable information device having a mirror function | Yusei Ukawa | 2011-02-08 |