Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11536636 | Hardness tester and program | Koji Shinza | 2022-12-27 |
| 10663381 | Hardness tester and program | Koji Shinza | 2020-05-26 |
| D848867 | Display device for hardness tester | Sadayuki Matsumiya, Yoshiro Asano, Masaru Kawazoe, Shigeru Ohtani, Yu Sugai +1 more | 2019-05-21 |
| D848882 | Hardness tester | Sadayuki Matsumiya, Yoshiro Asano, Masaru Kawazoe, Shigeru Ohtani, Yu Sugai | 2019-05-21 |
| D848883 | Hardness tester | Sadayuki Matsumiya, Yoshiro Asano, Masaru Kawazoe, Shigeru Ohtani, Yu Sugai | 2019-05-21 |
| D847676 | Hardness tester | Sadayuki Matsumiya, Yoshiro Asano, Masaru Kawazoe, Shigeru Ohtani, Yu Sugai | 2019-05-07 |
| D847674 | Hardness tester | Sadayuki Matsumiya, Yoshiro Asano, Masaru Kawazoe, Shigeru Ohtani, Yu Sugai | 2019-05-07 |
| D847675 | Hardness tester | Sadayuki Matsumiya, Yoshiro Asano, Masaru Kawazoe, Shigeru Ohtani, Yu Sugai | 2019-05-07 |
| 10094753 | Hardness tester | Takeshi Sawa | 2018-10-09 |
| 10024774 | Hardness test apparatus and hardness testing method | Makoto Kaieda, Akira Takada | 2018-07-17 |
| 9442054 | Hardness tester having offset correction feature | Fumihiro Takemura | 2016-09-13 |
| 9442056 | Hardness tester | Takeshi Sawa | 2016-09-13 |
| 9417171 | Hardness tester | Fumihiro Takemura | 2016-08-16 |
| 9063048 | Hardness tester and program | — | 2015-06-23 |
| 7380443 | Hardness testing apparatus | Masaharu Tsujii, Eiji Furuta, Ryouji Nakamura, Satoko Nomaguchi, Ryotaro Fukuchi | 2008-06-03 |
| 7121136 | Hardness testing apparatus | Masaharu Tsujii, Eiji Furuta, Ryouji Nakamura, Satoko Nomaguchi, Ryotaro Fukuchi | 2006-10-17 |
| 6279388 | Apparatus for calibrating hardness tester, method for calibrating the same and apparatus for evaluating dynamic characteristic of specimen | Masaharu Tsujii | 2001-08-28 |