Issued Patents All Time
Showing 51–75 of 91 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6159438 | Method and apparatus for manufacturing a silicon single crystal having few crystal defects, and a silicon single crystal and silicon wafers manufactured by the same | Makoto Iida, Eiichi Iino, Shozo Muraoka, Hideki Yamanaka | 2000-12-12 |
| 6120598 | Method for producing a silicon single crystal having few crystal defects, and a silicon single crystal and silicon wafers produced by the method | Makoto Iida, Eiichi Iino, Shozo Muraoka | 2000-09-19 |
| 6120749 | Silicon single crystal with no crystal defect in peripheral part of wafer and process for producing the same | Kiyotaka Takano, Makoto Iida, Eiichi Iino, Hirotoshi Yamagishi | 2000-09-19 |
| 6120599 | Silicon single crystal wafer having few crystal defects, and method for producing the same | Makoto Iida, Eiichi Iino, Shozo Muraoka | 2000-09-19 |
| 6113686 | Single crystal growing method and apparatus | Eiichi Iino, Yasushi Nakamura, Seiichiro Otsuka, Koji Midzuishi, Hirotoshi Yamagishi | 2000-09-05 |
| 6077343 | Silicon single crystal wafer having few defects wherein nitrogen is doped and a method for producing it | Makoto Iida, Masaro Tamatsuka, Shozo Muraoka | 2000-06-20 |
| 6066306 | Silicon single crystal wafer having few crystal defects, and method RFO producing the same | Makoto Iida, Eiichi Iino, Shozo Muraoka | 2000-05-23 |
| 6053975 | Crystal holding apparatus | Makoto Iida, Eiichi Iino, Shozo Muraoka | 2000-04-25 |
| 6048395 | Method for producing a silicon single crystal having few crystal defects | Makoto Iida, Satoshi Suzuki, Eiichi Iino, Shozo Muraoka | 2000-04-11 |
| 6027562 | Method for producing a silicon single crystal having few crystal defects, and a silicon single crystal and silicon wafers produced by the method | Makoto Iida, Eiichi Iino, Shozo Muraoka | 2000-02-22 |
| 5980630 | Manufacturing method of single crystal and apparatus of manufacturing the same | Eiichi Iino, Kiyotaka Takano, Hirotoshi Yamagishi | 1999-11-09 |
| 5976246 | Process for producing silicon single crystal | Eiichi Iino, Shozo Muraoka | 1999-11-02 |
| 5968266 | Apparatus for manufacturing single crystal of silicon | Eiichi Iino, Shozo Muraoka | 1999-10-19 |
| 5968264 | Method and apparatus for manufacturing a silicon single crystal having few crystal defects, and a silicon single crystal and silicon wafers manufactured by the same | Makoto Iida, Eiichi Iino, Shozo Muraoka, Hideki Yamanaka | 1999-10-19 |
| 5964941 | Crystal pulling method and apparatus | Eiichi Iino, Makoto Iida, Shozo Muraoka | 1999-10-12 |
| 5948164 | Seed crystal holder | Makoto Iida, Eiichi Iino, Shozo Muraoka | 1999-09-07 |
| 5938842 | Method for producing a single crystal using czochralski technique | Masahiro Sakurada, Tomohiko Oota, Kiyotaka Takano | 1999-08-17 |
| 5911821 | Method of holding a monocrystal, and method of growing the same | Eiichi Iino, Makoto Iida, Shozo Muraoka | 1999-06-15 |
| 5911822 | Method of manufacturing silicon monocrystal, and seed crystal used in the method | Takao Abe | 1999-06-15 |
| 5905844 | Method and apparatus for selectively recording character broadcasting program data | Masaki Oguro | 1999-05-18 |
| 5902546 | Aluminum alloy impeller and manufacturing method of the same | Nozomu Kawasetsu, Masatomo Shinohara, Kouichiro Imakiire, Keiichi Shiraishi, Masayuki HAYAKAWA +3 more | 1999-05-11 |
| 5902508 | Induction heating coil suitable for floating zone processing | Naosato Yoshida | 1999-05-11 |
| 5882397 | Crystal pulling method | Eiichi Iino, Makoto Iida, Masahiko Urano, Shozo Muraoka | 1999-03-16 |
| 5871578 | Methods for holding and pulling single crystal | Eiichi Iino, Makoto Iida, Shozo Muraoka | 1999-02-16 |
| 5843229 | Crystal holding apparatus | Eiichi Iino, Hirotoshi Yamagishi, Kiyotaka Takano | 1998-12-01 |