Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11821104 | Apparatus for manufacturing single crystal | Takumi Kobayashi, Kazuya Yanase, Atsushi Okai, Atsushi Iwasaki | 2023-11-21 |
| 10036100 | Apparatus for producing silicon single crystal | Takahiro Yanagimachi, Masahiro Akiba, Junya Tokue | 2018-07-31 |
| 9777394 | Method of producing silicon single crystal ingot | Wataru Sato, Nobuaki Mitamura, Tomohiko Ohta | 2017-10-03 |
| 9422635 | Single crystal production apparatus and single crystal production method having pedestal with grooves | Atsushi Iwasaki, Shinobu Takeyasu | 2016-08-23 |
| 9337013 | Silicon wafer and method for producing the same | Izumi Fusegawa, Ryoji Hoshi, Hisayuki Saito | 2016-05-10 |
| 9260796 | Method for measuring distance between lower end surface of heat insulating member and surface of raw material melt and method for controlling thereof | Ryoji Hoshi, Masahiko Urano | 2016-02-16 |
| 9234296 | Apparatus having heat insulating cylinder with step portion for manufacturing semiconductor single crystal | Shou Takashima, Yuuichi Miyahara, Atsushi Iwasaki, Nobuaki Mitamura | 2016-01-12 |
| 9200380 | Single-crystal manufacturing method and single-crystal manufacturing apparatus | Suguru Matsumoto, Toshiharu Uesugi, Takashi Mori | 2015-12-01 |
| 8441623 | Method for detecting the diameter of a single crystal and single crystal pulling apparatus | Takahiro Yanagimachi | 2013-05-14 |
| 7594966 | Method for producing a single crystal | Ryoji Hoshi | 2009-09-29 |
| 7396405 | Single crystal, single crystal wafer, epitaxial wafer, and method of growing single crystal | Ryoji Hoshi | 2008-07-08 |
| 7204881 | Silicon wafer for epitaxial growth, an epitaxial wafer, and a method for producing it | Ryoji Hoshi | 2007-04-17 |
| 7201801 | Heater for manufacturing a crystal | Ryoji Hoshi, Wataru Sato, Tomohiko Ohta | 2007-04-10 |
| 6565822 | Epitaxial silicon wafer, method for producing the same and subtrate for epitaxial silicon wafer | Ryoji Hoshi, Masahiro Sakurada, Tomohiko Ohta, Izumi Fusegawa | 2003-05-20 |
| 6506251 | Method for producing silicon single crystal | Koji Kitagawa | 2003-01-14 |
| 6228165 | Method of manufacturing crystal of silicon using an electric potential | Masahiko Baba, Scott Matthew Kirkland, Richard William Rudberg, Darren Mark Taie, Akira Uchikawa | 2001-05-08 |
| 5972106 | Device and method for producing single crystal | Tomohiko Ohta, Satoshi Soeta, Yoshihiro Kodama | 1999-10-26 |
| 5882398 | Method of manufacturing single crystal of silicon | Toshiro Hayashi, Atsushi Iwasaki, Tomohiko Ohta | 1999-03-16 |
| 5269875 | Method of adjusting concentration of oxygen in silicon single crystal and apparatus for use in the method | Kenji Araki, Atsushi Iwasaki, Masahiko Baba | 1993-12-14 |
| 5131974 | Method of controlling oxygen concentration in single crystal and an apparatus therefor | Tetsuhiro Oda, Atsushi Ozaki, Toshio Hisaichi | 1992-07-21 |