Takao Maruyama

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Head-mounted display device and image display system
- Patent number 10,591,735
- Issue date Mar 17, 2020
- Sony Interactive Entertainment Inc.
- Yoichi Nishimaki
- G02 - OPTICS
Information Patent Grant
Head-mounted display device and video display system
- Patent number 10,353,207
- Issue date Jul 16, 2019
- Sony Interactive Entertainment Inc.
- Takao Maruyama
- G02 - OPTICS
Information Patent Grant
Identification apparatus, control apparatus, identification method,...
- Patent number 9,953,128
- Issue date Apr 24, 2018
- Sony Corporation
- Takao Maruyama
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Optical pickup control circuit and optical disc drive device
- Patent number 8,391,111
- Issue date Mar 5, 2013
- Sony Corporation
- Takao Maruyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive apparatus
- Patent number 7,099,247
- Issue date Aug 29, 2006
- Sony Corporation
- Seiryu Takayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive apparatus for optimum motor control
- Patent number 7,042,821
- Issue date May 9, 2006
- Sony Corporation
- Seiryu Takayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk driving apparatus
- Patent number 7,006,413
- Issue date Feb 28, 2006
- Sony Corporation
- Seiryu Takayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Sensorless motor starting system
- Patent number 6,597,140
- Issue date Jul 22, 2003
- Sony Corporation
- Seiryu Takayama
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
GAS SENSOR DEVICE, INFORMATION PROCESSING APPARATUS, AND ODOR PRESE...
- Publication number 20230372571
- Publication date Nov 23, 2023
- Sony Interactive Entertainment Inc.
- Shinichi Hirata
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
AROMA CHEMICAL PRESENTATION APPARATUS
- Publication number 20230372570
- Publication date Nov 23, 2023
- Sony Interactive Entertainment Inc.
- Yuichi Machida
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
HEAD-MOUNTED DISPLAY DEVICE AND IMAGE DISPLAY SYSTEM
- Publication number 20180217380
- Publication date Aug 2, 2018
- Sony Interactive Entertainment Inc.
- Yoichi Nishimaki
- G02 - OPTICS
Information Patent Application
HEAD-MOUNTED DISPLAY DEVICE AND VIDEO DISPLAY SYSTEM
- Publication number 20170315367
- Publication date Nov 2, 2017
- Sony Interactive Entertainment Inc.
- Takao Maruyama
- G02 - OPTICS
Information Patent Application
IDENTIFICATION APPARATUS, CONTROL APPARATUS, IDENTIFICATION METHOD,...
- Publication number 20130124120
- Publication date May 16, 2013
- SONY CORPORATION
- Takao Maruyama
- G01 - MEASURING TESTING
Information Patent Application
OPTICAL PICKUP CONTROL CIRCUIT AND OPTICAL DISC DRIVE DEVICE
- Publication number 20110305123
- Publication date Dec 15, 2011
- SONY CORPORATION
- Takao Maruyama
- G11 - INFORMATION STORAGE
Information Patent Application
Disk drive apparatus
- Publication number 20050286371
- Publication date Dec 29, 2005
- Sony Corporation
- Seiryu Takayama
- G11 - INFORMATION STORAGE
Information Patent Application
Disk driving apparatus
- Publication number 20030007433
- Publication date Jan 9, 2003
- Seiryu Takayama
- G11 - INFORMATION STORAGE
Information Patent Application
Disk drive apparatus
- Publication number 20020186631
- Publication date Dec 12, 2002
- Seiryu Takayama
- G11 - INFORMATION STORAGE
Information Patent Application
Sensorless motor starting system
- Publication number 20020003412
- Publication date Jan 10, 2002
- Seiryu Takayama
- G11 - INFORMATION STORAGE

Takao Maruyama

Person

Patents Grantslast 30 patents

Head-mounted display device and image display system

Head-mounted display device and video display system

Identification apparatus, control apparatus, identification method,...

Optical pickup control circuit and optical disc drive device

Disk drive apparatus

Disk drive apparatus for optimum motor control

Disk driving apparatus

Sensorless motor starting system

Patents Applicationslast 30 patents

GAS SENSOR DEVICE, INFORMATION PROCESSING APPARATUS, AND ODOR PRESE...

AROMA CHEMICAL PRESENTATION APPARATUS

HEAD-MOUNTED DISPLAY DEVICE AND IMAGE DISPLAY SYSTEM

HEAD-MOUNTED DISPLAY DEVICE AND VIDEO DISPLAY SYSTEM

IDENTIFICATION APPARATUS, CONTROL APPARATUS, IDENTIFICATION METHOD,...

OPTICAL PICKUP CONTROL CIRCUIT AND OPTICAL DISC DRIVE DEVICE

Disk drive apparatus

Disk driving apparatus

Disk drive apparatus

Sensorless motor starting system