Ohtsuka; Koji

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ohtsuka; Koji.The latest application filed is for "differential device".

Company Profile

0.14.9

Ohtsuka; Koji - Shimotsuga-gun JP
Ohtsuka; Koji - Niiza JP
Ohtsuka; Koji - Niiza-shi JP
Ohtsuka; Koji - Kawagoe JP
Ohtsuka; Koji - Chiba JP
Ohtsuka, Koji - Kawagoe-shi JP
Ohtsuka, Koji - Yokohama-shi JP
Ohtsuka, Koji - Saitama-ken JP
Ohtsuka; Koji - Shiki JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Differential device Grant 7,780,565 - Fusegi , et al. August 24, 2	2010-08-24
Semiconductor light-emitting device using phosphors for performing wavelength conversion Grant 7,323,723 - Ohtsuka , et al. January 29, 2	2008-01-29
Differential device App 20080015076 - Fusegi; Masaaki ; et al.	2008-01-17
Light-emitting semiconductor device having a quantum well active layer, and method of fabrication Grant 7,176,480 - Ohtsuka , et al. February 13, 2	2007-02-13
Semiconductor light-emitting device light-emitting display method for manufacturing semiconductor light-emitting device and method for manufacturing light-emitting display App 20060175621 - Ohtsuka; Koji ; et al.	2006-08-10
Light-emitting semiconductor device having a quantum well active layer, and method of fabrication App 20050191778 - Ohtsuka, Koji ; et al.	2005-09-01
Compound semiconductor substrates and method of fabrication Grant 6,890,791 - Ohtsuka , et al. May 10, 2	2005-05-10
Hall-effect current detector Grant 6,841,989 - Goto , et al. January 11, 2	2005-01-11
Compound semiconductor substrates and method of fabrication App 20040232440 - Ohtsuka, Koji ; et al.	2004-11-25
Semiconductor current detector of improved noise immunity Grant 6,812,687 - Ohtsuka November 2, 2	2004-11-02
Catalyst for hydrocracking of heavy oils and method of hydrocracking heavy oils Grant 6,797,153 - Fukuyama , et al. September 28, 2	2004-09-28
Electrical current detector having a U-shaped current path and hall-effect device Grant 6,791,313 - Ohtsuka September 14, 2	2004-09-14
Hall-effect current detector Grant 6,759,841 - Goto , et al. July 6, 2	2004-07-06
Electrical current detector having a U-shaped current path and hall-effect device App 20040080307 - Ohtsuka, Koji	2004-04-29
Large current detector having a hall-effect device Grant 6,683,448 - Ohtsuka January 27, 2	2004-01-27
Current detector utilizing hall effect Grant 6,545,457 - Goto , et al. April 8, 2	2003-04-08
Hall-effect current detector App 20030001559 - Goto, Hirokazu ; et al.	2003-01-02
Cooling structure for rotating electric machine App 20020195887 - Kobayashi, Masakazu ; et al.	2002-12-26
Hall-effect current detector App 20020190703 - Goto, Hirokazu ; et al.	2002-12-19
Current detector having a hall-effect device Grant 6,462,531 - Ohtsuka October 8, 2	2002-10-08
Semiconductor device having a hall-effect element Grant 6,424,018 - Ohtsuka July 23, 2	2002-07-23
Hall-effect magnetoelectric converter App 20020011841 - Goto, Hirokazu ; et al.	2002-01-31
High speed, high voltage schottky semiconductor device Grant 5,075,740 - Ohtsuka , et al. December 24, 1	1991-12-24

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