Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10366882 | System for producing polycrystalline silicon, apparatus for producing polycrystalline silicon, and process for producing polycrystalline silicon | Shigeyoshi Netsu, Takaaki Shimizu, Yasushi Kurosawa, Fumitaka Kume | 2019-07-30 |
| 9562289 | Carbon electrode with slidable contact surfaces and apparatus for manufacturing polycrystalline silicon rod | Shigeyoshi Netsu, Shinichi Kurotani, Fumitaka Kume, Masaru Hirahara | 2017-02-07 |
| 9193596 | Reactor for producing polycrystalline silicon, system for producing polycrystalline silicon, and process for producing polycrystalline silicon | Shigeyoshi Netsu, Takaaki Shimizu, Yasushi Kurosawa, Fumitaka Kume | 2015-11-24 |
| 9126242 | Method for cleaning bell jar, method for producing polycrystalline silicon, and apparatus for drying bell jar | Yasushi Kurosawa, Shinichi Kurotani, Shigeyoshi Netsu | 2015-09-08 |
| 9017482 | System for producing polycrystalline silicon, apparatus for producing polycrystalline silicon, and process for producing polycrystalline silicon | Shigeyoshi Netsu, Takaaki Shimizu, Yasushi Kurosawa, Fumitaka Kume | 2015-04-28 |
| 8793853 | Core wire holder for producing polycrystalline silicon and method for producing polycrystalline silicon | Shigeyoshi Netsu, Shinichi Kurotani, Fumitaka Kume | 2014-08-05 |
| 8328935 | Method of manufacturing polycrystalline silicon rod | Michihiro Mizuno, Shinichi Kurotani, Shigeyoshi Netsu | 2012-12-11 |
| 8293076 | Method for producing trichlorosilane and method for producing polycrystalline silicon | Takaaki Shimizu | 2012-10-23 |
| 7790132 | Method for producing trichlorosilane and method for producing polycrystalline silicon | Takaaki Shimizu | 2010-09-07 |
| 7691357 | Method for producing polycrystalline silicon | Takaaki Shimizu, Takeshi Aoyama | 2010-04-06 |
| 7691356 | Method for producing trichlorosilane | Takaaki Shimizu | 2010-04-06 |
| 6071349 | Gas supplying apparatus and vapor-phase growth plant | Yasushi Kurosawa, Yutaka Ota, Yuji Okubo | 2000-06-06 |
| 5693189 | Method and apparatus for supply of liquid raw material gas | Yasushi Kurosawa | 1997-12-02 |
| 5310531 | Polycrystalline silicon rod for floating zone method and process for making the same | Yasuhiro Ikeda | 1994-05-10 |