Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7875117 | Nitrogen doped silicon wafer and manufacturing method thereof | Susumu Maeda, Kouichirou Hayashida, Takahisa Sugiman, Katsuhiko Sugisawa | 2011-01-25 |
| 7759227 | Silicon semiconductor substrate heat-treatment method and silicon semiconductor substrate treated by the method | Susumu Maeda, Takahisa Sugiman, Shinya Sadohara, Shiro Yoshino | 2010-07-20 |
| 5673809 | Container closure with a plastic liner having projections extending into depressions in the plastic shell | Hidehiko Ohmi, Tateo Kubo, Tomoya Igarashi | 1997-10-07 |