Issued Patents All Time
Showing 1–25 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12162762 | Polycrystalline silicon rod | Naruhiro Hoshino, Tetsuro Okada, Masahiko Ishida | 2024-12-10 |
| 12060277 | Method for producing polycrystalline silicon | Yasushi Kurosawa, Naruhiro Hoshino | 2024-08-13 |
| 11440804 | Process for producing polycrystalline silicon mass | Junichi Okada, Fumitaka Kume | 2022-09-13 |
| 11242620 | Polycrystalline silicon rod and method for producing polycrystalline silicon rod | Shuichi Miyao, Naruhiro Hoshino, Tetsuro Okada, Masahiko Ishida | 2022-02-08 |
| 11230796 | Resin material, vinyl bag, polycrystalline silicon rod, polycrystalline silicon mass | Shuichi Miyao, Kazunori Watanabe | 2022-01-25 |
| 11167994 | Polycrystalline silicon rod, processing method for polycrystalline silicon rod, method for evaluating polycrystalline silicon rod, and method for producing FZ single crystal silicon | Shuichi Miyao, Junichi Okada | 2021-11-09 |
| 10914021 | Polycrystalline silicon rod and method for producing single crystal silicon | Shuichi Miyao, Masahiko Ishida, Naruhiro Hoshino | 2021-02-09 |
| 10870581 | Reaction furnace for producing polycrystalline silicon, apparatus for producing polycrystalline silicon, method for producing polycrystalline silicon, and polycrystalline silicon rod or polycrystalline silicon ingot | Naruhiro Hoshino, Tetsuro Okada, Hiroshi Saito | 2020-12-22 |
| 10865498 | Polycrystalline silicon rod, method for producing polycrystalline silicon rod, and single-crystalline silicon | Shuichi Miyao, Tetsuro Okada | 2020-12-15 |
| 10858258 | Reaction furnace for producing polycrystalline silicon, apparatus for producing polycrystalline silicon, method for producing polycrystalline silicon, and polycrystalline silicon rod or polycrystalline silicon ingot | Naruhiro Hoshino, Tetsuro Okada, Hiroshi Saito | 2020-12-08 |
| 10858259 | Reactor for polycrystalline silicon production and method for producing polycrystalline silicon | Yasushi Kurosawa, Naruhiro Hoshino | 2020-12-08 |
| 10800659 | Polycrystalline silicon rod, processing method for polycrystalline silicon rod, method for evaluating polycrystalline silicon rod, and method for producing FZ single crystal silicon | Shuichi Miyao, Junichi Okada | 2020-10-13 |
| 10760180 | Polycrystalline silicon ingot, polycrystalline silicon bar, and method for producing single crystal silicon | Shuichi Miyao, Naruhiro Hoshino, Tetsuro Okada | 2020-09-01 |
| 10611635 | Hydrogen gas recovery system and hydrogen gas separation and recovery method | Masahiko Ishida, Hiroshi Saito, Shuji Tanaka | 2020-04-07 |
| 10584035 | Purification system of trichlorosilane and silicon crystal | Ryota Kishi, Masahiko Ishida | 2020-03-10 |
| 10377636 | Method for producing polycrystalline silicon rod, polycrystalline silicon rod, and polycrystalline silicon mass | Shuichi Miyao, Junichi Okada | 2019-08-13 |
| 10366882 | System for producing polycrystalline silicon, apparatus for producing polycrystalline silicon, and process for producing polycrystalline silicon | Kyoji Oguro, Takaaki Shimizu, Yasushi Kurosawa, Fumitaka Kume | 2019-07-30 |
| 10343922 | Polycrystalline silicon rod, production method therefor, and FZ silicon single crystal | Shuichi Miyao | 2019-07-09 |
| 10207932 | Trichlorosilane purification system and method for producing polycrystalline silicon | Ryota Kishi, Masahiko Ishida | 2019-02-19 |
| 10066320 | Polycrystalline silicon, FZ single crystal silicon, and method for producing the same | Shuichi Miyao | 2018-09-04 |
| 9605356 | Method for selecting polycrystalline silicon rod, and method for producing single crystalline silicon | Shuichi Miyao, Junichi Okada | 2017-03-28 |
| 9562289 | Carbon electrode with slidable contact surfaces and apparatus for manufacturing polycrystalline silicon rod | Shinichi Kurotani, Kyoji Oguro, Fumitaka Kume, Masaru Hirahara | 2017-02-07 |
| 9437429 | Polycrystalline silicon manufacturing apparatus and polycrystalline silicon manufacturing method | Yasushi Kurosawa, Naruhiro Hoshino | 2016-09-06 |
| 9416444 | Apparatus for producing polycrystalline silicon and method for producing polycrystalline silicon | Yasushi Kurosawa | 2016-08-16 |
| 9394606 | Production method for polycrystalline silicon, and reactor for polycrystalline silicon production | Yasushi Kurosawa, Naruhiro Hoshino, Tetsuro Okada | 2016-07-19 |