Yamagishi; Hirotoshi
Patent Applications and Registrations
Patent applications and USPTO patent grants for Yamagishi; Hirotoshi.The latest application filed is for "silicon single crystal with no crystal defect in peripheral part of wafer and process for producing the same".
- Yamagishi; Hirotoshi - Gunma-ken JP
- Yamagishi; Hirotoshi - Annaka JP
- Yamagishi; Hirotoshi - Gunma JP
| Patent | Date |
|---|---|
| Silicon single crystal with no crystal defect in peripheral part of wafer and process for producing the same Grant 6,120,749 - Takano , et al. September 19, 2 | 2000-09-19 |
| Heat treatment of Si single crystal Grant 5,834,322 - Fusegawa , et al. November 10, 1 | 1998-11-10 |
| Manufacturing method of single crystal Grant 5,792,255 - Iino , et al. August 11, 1 | 1998-08-11 |
| High-frequency induction heater and method of producing semiconductor single crystal using the same Grant 5,792,258 - Kimura , et al. August 11, 1 | 1998-08-11 |
| Single crystal pulling apparatus Grant 5,667,588 - Iino , et al. September 16, 1 | 1997-09-16 |
| High-frequency induction heating coil Grant 5,550,354 - Kimura , et al. August 27, 1 | 1996-08-27 |
| Method for testing electrical properties of silicon single crystal Grant 5,534,112 - Fusegawa , et al. July 9, 1 | 1996-07-09 |
| Method of growing silicon single crystals Grant 5,501,172 - Murai , et al. March 26, 1 | 1996-03-26 |
| Apparatus for supplying granular raw material for a semiconductor single crystal pulling apparatus Grant 5,462,010 - Takano , et al. October 31, 1 | 1995-10-31 |
| Single crystal pulling apparatus Grant 5,373,805 - Takano , et al. December 20, 1 | 1994-12-20 |
| Single crystal pulling apparatus Grant 5,361,721 - Takano , et al. November 8, 1 | 1994-11-08 |
| Method for treatment of semiconductor wafer Grant 5,348,893 - Yamagishi September 20, 1 | 1994-09-20 |
| Method and apparatus for producing silicon single crystal Grant 5,248,378 - Oda , et al. September 28, 1 | 1993-09-28 |
| Apparatus for producing czochralski-grown single crystals Grant 5,126,113 - Yamagishi , et al. June 30, 1 | 1992-06-30 |
| Method for heat processing of silicon Grant 5,110,404 - Fusegawa , et al. May 5, 1 | 1992-05-05 |
| Apparatus for Czochralski single crystal growing Grant 4,956,153 - Yamagishi , et al. September 11, 1 | 1990-09-11 |
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