Takeo Katoh — 14 Patents at Sumco

Takeo Katoh has been granted 14 US patents while listed as an inventor at Sumco. The first was granted in 2009 and the most recent in January 2019. Takeo Katoh ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Takeo Katoh in Tokyo, JP.

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #	Title	Co-Inventors	Date
10177008	Silicon wafer and method for manufacturing the same	Takashi Nakayama, Kazumi Tanabe, Shigeru Umeno	2019-01-08
8877643	Method of polishing a silicon wafer	Shuhei Matsuda, Tetsuro Iwashita, Ryuichi Tanimoto, Takeru Takushima	2014-11-04
8759229	Method for manufacturing epitaxial wafer	Sakae Koyata, Kazushige Takaishi, Tomohiro Hashii, Katsuhiko Murayama	2014-06-24
8466071	Method for etching single wafer	Sakae Koyata, Tomohiro Hashii, Katsuhiko Murayama, Kazushige Takaishi	2013-06-18
8379196	Method for judging whether semiconductor wafer is non-defective wafer by using laser scattering method	Eiji Kamiyama, Takashi Nakayama	2013-02-19
8147295	Method of polishing silicon wafer	Ryuichi Tanimoto, Shinichi Ogata, Takeru Takushima, Kazushige Takaishi	2012-04-03
8066896	Apparatus for etching wafer by single-wafer process and single wafer type method for etching wafer	Sakae Koyata, Tomohiro Hashii, Katsuhiko Murayama, Kazushige Takaishi	2011-11-29
7955982	Method for smoothing wafer surface and apparatus used therefor	Tomohiro Hashii, Katsuhiko Murayama, Sakae Koyata, Kazushige Takaishi	2011-06-07
7906438	Single wafer etching method	Sakae Koyata, Tomohiro Hashii, Katsuhiko Murayama, Kazushige Takaishi	2011-03-15
7833908	Slurry composition for chemical-mechanical polishing capable of compensating nanotopography effect and method for planarizing surface of semiconductor device using the same	Jea Gun Park, Won Mo Lee, Hyun Goo KANG, Sung Jun Kim, Un-gyu Paik	2010-11-16
7648890	Process for producing silicon wafer	Sakae Koyata, Tomohiro Hashii, Katsuhiko Murayama, Kazushige Takaishi	2010-01-19
7601644	Method for manufacturing silicon wafers	Sakae Koyata, Tomohiro Hashii, Katsuhiko Murayama, Kazushige Takaishi	2009-10-13
7491342	Bonded semiconductor substrate manufacturing method thereof	Eiji Kamiyama, Jea Gun Park	2009-02-17
7488400	Apparatus for etching wafer by single-wafer process	Sakae Koyata, Tomohiro Hashii, Katsuhiko Murayama, Kazushige Takaishi	2009-02-10

Takeo Katoh — 14 Patents

Issued Patents All Time

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