Ken Hamada — 22 Patents at Sumco

Ken Hamada has been granted 22 US patents while listed as an inventor at Sumco. The first was granted in 1987 and the most recent in November 2019. Ken Hamada ranks #189,202 of 4,157,543 US inventors in our database (top 4.6%). Patent records list Ken Hamada in Tokyo, JP.

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
10472733	Silicon single crystal manufacturing method	Keiichi Takanashi	2019-11-12
10066313	Method of producing single crystal	Hiroaki Taguchi, Kazuyuki Egashira	2018-09-04
9959611	Method and apparatus for manufacturing single crystal	—	2018-05-01
9816199	Method of manufacturing single crystal	Keiichi Takanashi	2017-11-14
9720866	Interface circuit executing protocol control in compliance with first and second interface standards	Toshio Fujisawa, Nobuhiro Kondo	2017-08-01
9708731	Method of producing silicon single crystal	Keiichi Takanashi	2017-07-18
9567692	Silicon single crystal manufacturing apparatus and silicon single crystal manufacturing method	Keiichi Takanashi	2017-02-14
9284660	Apparatus of producing silicon single crystal and method of producing silicon single crystal	Keiichi Takanashi	2016-03-15
9145620	Single crystal pulling apparatus	Shuichi Inami, Hiroaki Taguchi, Takuya Yotsui, Takashi Atami	2015-09-29
8968468	Method of controlling single crystal diameter	—	2015-03-03
7819972	Method for growing silicon single crystal and method for manufacturing silicon wafer	Shuichi Inami, Nobumitsu Takase, Yasuhiro Kogure, Tsuyoshi Nakamura	2010-10-26
7473314	Method for growing silicon single crystal	Shuichi Inami, Nobumitsu Takase, Yasuhiro Kogure, Tsuyoshi Nakamura	2009-01-06
7442251	Method for producing silicon single crystals and silicon single crystal produced thereby	Shuichi Inami, Hiroki Murakami, Nobumitsu Takase, Tsuyoshi Nakamura	2008-10-28
7264674	Method for pulling a single crystal	Keiichi Takanashi, Tokuji Maeda	2007-09-04
7207187	Inverter-integrated motor for an automotive vehicle	Kenji Funahashi, Hiroyuki Kawata, Yasuyuki Ohkouchi	2007-04-24
6284041	Process for growing a silicon single crystal	Hiroyuki Tanabe	2001-09-04
5739671	Device for accurate detection of remaining discharge capacities of a plurality of batteries	—	1998-04-14
5475670	Deflection plate for optical pick-up device	Hideyuki Nakanishi, Hirokazu Shimizu	1995-12-12	$55,000
4745611	Buried twin ridge substrate laser	Kunio Itoh, Masahiro Kume, Takao Shibutani, Hirokazu Shimizu	1988-05-17	$285,000
4731792	Semiconductor laser device with decreased light intensity noise	Hirokazu Shimizu, Masahiro Kume, Masuru Wada, Kunio Itoh, Fumiko Tajiri	1988-03-15	$575,000
4716571	A high-output semiconductor laser of dove tail groove type	Masaru Wada, Kunio Itoh	1987-12-29	$369,000
4675074	Method of manufacturing semiconductor device	Masaru Wada, Hirokazu Shimizu, Takao Shibutani, Kunio Itoh, Iwao Teramoto	1987-06-23	$889,000

Ken Hamada — 22 Patents

Issued Patents All Time

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