Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D504341 | Measurement instrument | David Graef, Norio Shimomura, Satoshi Hayasaka | 2005-04-26 |
| D504078 | Measurement instrument | David Graef, Norio Shimomura, Satoshi Hayasaka | 2005-04-19 |
| D501414 | Measurement instrument | David Graef, Norio Shimomura, Satoshi Hayasaka | 2005-02-01 |
| D500693 | Measurement instrument | David Graef, Norio Shimomura, Satoshi Hayasaka | 2005-01-11 |