Kuniaki OTSUKA

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Three-phase AC motor drive device, rail vehicle equipped with same,...
- Patent number 11,701,971
- Issue date Jul 18, 2023
- Hitachi, Ltd.
- Takeshi Shinomiya
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Transmission system
- Patent number 10,027,522
- Issue date Jul 17, 2018
- Kabushiki Kaisha Toshiba
- Kuniaki Otsuka
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Transmission system and control method of same
- Patent number 9,231,654
- Issue date Jan 5, 2016
- Kabushiki Kaisha Toshiba
- Kuniaki Otsuka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Three-Phase AC Motor Drive Device, Rail Vehicle Equipped With Same,...
- Publication number 20220234450
- Publication date Jul 28, 2022
- Hitachi, Ltd
- Takeshi SHINOMIYA
- B60 - VEHICLES IN GENERAL
Information Patent Application
TRANSMISSION SYSTEM
- Publication number 20170237595
- Publication date Aug 17, 2017
- Kabushiki Kaisha Toshiba
- Kuniaki OTSUKA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRANSMISSION SYSTEM AND CONTROL METHOD OF SAME
- Publication number 20140370829
- Publication date Dec 18, 2014
- KABUSHIKI KAISHA TOSHIBA
- Kuniaki OTSUKA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE