Takafumi Maruyama

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Storage system and data processing method
- Patent number 12,061,804
- Issue date Aug 13, 2024
- Hitachi, Ltd.
- Suguru Shimotaya
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Multi-node storage system and queue control method of multi-node st...
- Patent number 10,895,989
- Issue date Jan 19, 2021
- Hitachi, Ltd.
- Hajime Ikeda
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Input/output apparatus and method
- Patent number 10,013,372
- Issue date Jul 3, 2018
- Hitachi, Ltd.
- Takafumi Maruyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Data processing system with a host bus adapter (HBA) running on a P...
- Patent number 8,799,530
- Issue date Aug 5, 2014
- Hitachi, Ltd.
- Takafumi Maruyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Vehicle control device and diesel hybrid vehicle system
- Patent number 8,786,116
- Issue date Jul 22, 2014
- Mitsubishi Electric Corporation
- Keita Hatanaka
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Power conversion device
- Patent number 8,704,482
- Issue date Apr 22, 2014
- Mitsubishi Electric Corporation
- Takafumi Maruyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electric vehicle control device
- Patent number 7,453,231
- Issue date Nov 18, 2008
- Mitsubishi Electric Corporation
- Takafumi Maruyama
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Electric motor car controller
- Patent number 6,995,540
- Issue date Feb 7, 2006
- Mitsubishi Denki Kabushiki Kaisha
- Takafumi Maruyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control apparatus for internal combustion type electric locomotive
- Patent number 6,087,791
- Issue date Jul 11, 2000
- Mitsubishi Denki Kabushiki Kaisha
- Takafumi Maruyama
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method of controlling an inverter
- Patent number 5,155,675
- Issue date Oct 13, 1992
- Mitsubishi Denki Kabushiki Kaisha
- Takafumi Maruyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method of controlling three-phase, three-level inverter
- Patent number 5,060,129
- Issue date Oct 22, 1991
- Mitsubishi Denki Kabushiki Kaisha
- Takafumi Maruyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
STORAGE SYSTEM AND DATA PROCESSING METHOD
- Publication number 20230168817
- Publication date Jun 1, 2023
- Hitachi, Ltd
- Suguru SHIMOTAYA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
STORAGE APPARATUS AND STORAGE APPARATUS CONTROL METHOD
- Publication number 20220300158
- Publication date Sep 22, 2022
- Hitachi, Ltd
- Hiroki KUSHIDA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MULTI-NODE STORAGE SYSTEM AND QUEUE CONTROL METHOD OF MULTI-NODE ST...
- Publication number 20200174673
- Publication date Jun 4, 2020
- Hitachi, Ltd
- Hajime IKEDA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
INPUT/OUTPUT APPARATUS AND METHOD
- Publication number 20170097911
- Publication date Apr 6, 2017
- Hitachi, Ltd
- Takafumi MARUYAMA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
COMPUTER AND INPUT/OUTPUT CONTROL METHOD OF COMPUTER
- Publication number 20130304949
- Publication date Nov 14, 2013
- Hitachi, Ltd
- Takafumi MARUYAMA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
VEHICLE CONTROL DEVICE AND DIESEL HYBRID VEHICLE SYSTEM
- Publication number 20130154264
- Publication date Jun 20, 2013
- MITSUBISHI ELECTRIC CORPORATION
- Keita Hatanaka
- B60 - VEHICLES IN GENERAL
Information Patent Application
Power Conversion Device
- Publication number 20120001586
- Publication date Jan 5, 2012
- Mitsubishi Electric Corporation
- Takafumi Maruyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Electric Vehicle Control Device
- Publication number 20080100256
- Publication date May 1, 2008
- Mitsubishi Electric Corporation
- Takafumi Maruyama
- B60 - VEHICLES IN GENERAL
Information Patent Application
Electric motor car controller
- Publication number 20050264255
- Publication date Dec 1, 2005
- Mitsubishi Denki Kabushiki Kaisha
- Takafumi Maruyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Controller for driving electric vehicle
- Publication number 20020149417
- Publication date Oct 17, 2002
- Mitsubishi Denki Kabushiki Kaisha
- Masayoshi Kumano
- B60 - VEHICLES IN GENERAL

Takafumi Maruyama

Person

Patents Grantslast 30 patents

Storage system and data processing method

Multi-node storage system and queue control method of multi-node st...

Input/output apparatus and method

Data processing system with a host bus adapter (HBA) running on a P...

Vehicle control device and diesel hybrid vehicle system

Power conversion device

Electric vehicle control device

Electric motor car controller

Control apparatus for internal combustion type electric locomotive

Method of controlling an inverter

Method of controlling three-phase, three-level inverter

Patents Applicationslast 30 patents

STORAGE SYSTEM AND DATA PROCESSING METHOD

STORAGE APPARATUS AND STORAGE APPARATUS CONTROL METHOD

MULTI-NODE STORAGE SYSTEM AND QUEUE CONTROL METHOD OF MULTI-NODE ST...

INPUT/OUTPUT APPARATUS AND METHOD

COMPUTER AND INPUT/OUTPUT CONTROL METHOD OF COMPUTER

VEHICLE CONTROL DEVICE AND DIESEL HYBRID VEHICLE SYSTEM

Power Conversion Device

Electric Vehicle Control Device

Electric motor car controller

Controller for driving electric vehicle