Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12392050 | Infrared transmissivity measurement method of quartz glass crucible | Ken Kitahara, Masanori Fukui, Hiroshi Kishi, Eriko Kitahara | 2025-08-19 |
| 12116692 | Quartz glass crucible | Takeshi Fujita, Ken Kitahara, Eriko Kitahara | 2024-10-15 |
| 11939695 | Quartz glass crucible, manufacturing method of silicon single crystal using the same, and infrared transmissivity measurement method and manufacturing method of quartz glass crucible | Ken Kitahara, Masanori Fukui, Hiroshi Kishi, Eriko Kitahara | 2024-03-26 |
| 10494734 | Method for producing silicon single crystals | Kaoru Kajiwara, Yasuhiro Saito, Takahiro KANEHARA, Kazumi Tanabe, Hideki Tanaka | 2019-12-03 |
| 10211066 | Silicon epitaxial wafer and method of producing same | — | 2019-02-19 |
| 10020203 | Epitaxial silicon wafer | Yasuo Koike, Toshiaki Ono | 2018-07-10 |
| 8920560 | Method for manufacturing epitaxial wafer | Yasuo Koike, Toshiaki Ono, Naoki Ikeda | 2014-12-30 |