Motoi Otsuka

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Ibaragi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Fan apparatus
- Patent number 10,626,874
- Issue date Apr 21, 2020
- Nidec Servo Corporation
- Motoi Otsuka
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Fan motor driving circuit
- Patent number 6,703,803
- Issue date Mar 9, 2004
- Japan Servo Co. Ltd.
- Shoji Ohiwa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Fan motor
- Patent number 6,650,075
- Issue date Nov 18, 2003
- Japan Servo Co., Ltd.
- Motoi Otsuka
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
FAN APPARATUS
- Publication number 20180258939
- Publication date Sep 13, 2018
- NIDEC SERVO CORPORATION
- Motoi OTSUKA
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Fan motor driving circuit
- Publication number 20030155886
- Publication date Aug 21, 2003
- Japan Servo Co., Ltd.
- Shoji Ohiwa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Variable speed fan motor equipped with abnormal rotational speed de...
- Publication number 20030061879
- Publication date Apr 3, 2003
- Motoi Otsuka
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Fan motor
- Publication number 20030006725
- Publication date Jan 9, 2003
- Motoi Otsuka
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER