Hidekazu Totsuka

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Objective optical element and optical pickup apparatus
- Patent number 7,463,568
- Issue date Dec 9, 2008
- Konica Minolta Holdings, Inc.
- Mitsuru Mimori
- G11 - INFORMATION STORAGE
Information Patent Grant
Objective optical element, optical pick-up apparatus, and optical i...
- Patent number 6,856,471
- Issue date Feb 15, 2005
- Konica Corporation
- Hidekazu Totsuka
- G11 - INFORMATION STORAGE
Information Patent Grant
Objective lens for optical pick-up apparatus and optical pick-up ap...
- Patent number 6,747,812
- Issue date Jun 8, 2004
- Konica Corporation
- Kohei Ota
- G11 - INFORMATION STORAGE
Information Patent Grant
Starting control unit for a refrigeration machine
- Patent number 5,959,428
- Issue date Sep 28, 1999
- Mitsubishi Denki Kabushiki Kaisha
- Katuhiko Saito
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Motor unit, motor drive unit, fan unit and method of controlling th...
- Patent number 5,650,697
- Issue date Jul 22, 1997
- Mitsubishi Denki Kabushiki Kaisha
- Akihiko Imagi
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Control apparatus for multi-air-conditioner
- Patent number 5,642,857
- Issue date Jul 1, 1997
- Mitsubishi Denki Kabushiki Kaisha
- Hidekazu Totsuka
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
IMAGING OPTICAL SYSTEM, LENS UNIT, AND IMAGING DEVICE
- Publication number 20210356694
- Publication date Nov 18, 2021
- Konica Minolta, Inc.
- Atsushi YAMASHITA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Objective Lens and Optical Pickup Device
- Publication number 20110199882
- Publication date Aug 18, 2011
- Hidekazu Totsuka
- G02 - OPTICS
Information Patent Application
Objective optical element and optical pickup apparatus
- Publication number 20080259767
- Publication date Oct 23, 2008
- KONICA MINOLTA HOLDINGS, INC.
- Mitsuru Mimori
- G11 - INFORMATION STORAGE
Information Patent Application
Objective optical element and optical pickup apparatus
- Publication number 20070159952
- Publication date Jul 12, 2007
- KONICA MINOLTA HOLDINGS, INC.
- Mitsuru Mimori
- G11 - INFORMATION STORAGE
Information Patent Application
Objective lens and optical pickup apparatus
- Publication number 20060077862
- Publication date Apr 13, 2006
- KONICA MINOLTA OPTO, INC.
- Kiyono Ikenaka
- G11 - INFORMATION STORAGE
Information Patent Application
Optical pickup device
- Publication number 20050007931
- Publication date Jan 13, 2005
- Konica Minolta Opto, Inc.
- Katsuya Sakamoto
- G11 - INFORMATION STORAGE
Information Patent Application
Objective optical element and optical pickup apparatus
- Publication number 20040085662
- Publication date May 6, 2004
- KONICA MINOLTA HOLDINGS, INC.
- Mitsuru Mimori
- G11 - INFORMATION STORAGE
Information Patent Application
Objective optical element, optical pick-up apparatus, and optical i...
- Publication number 20030174417
- Publication date Sep 18, 2003
- Konica Corporation
- Hidekazu Totsuka
- G11 - INFORMATION STORAGE
Information Patent Application
Objective lens for optical pick-up apparatus and optical pick-up ap...
- Publication number 20030103272
- Publication date Jun 5, 2003
- KONICA CORPORATION
- Kohei Ota
- G11 - INFORMATION STORAGE

Hidekazu Totsuka

Person

Patents Grantslast 30 patents

Objective optical element and optical pickup apparatus

Objective optical element, optical pick-up apparatus, and optical i...

Objective lens for optical pick-up apparatus and optical pick-up ap...

Starting control unit for a refrigeration machine

Motor unit, motor drive unit, fan unit and method of controlling th...

Control apparatus for multi-air-conditioner

Patents Applicationslast 30 patents

IMAGING OPTICAL SYSTEM, LENS UNIT, AND IMAGING DEVICE

Objective Lens and Optical Pickup Device

Objective optical element and optical pickup apparatus

Objective optical element and optical pickup apparatus

Objective lens and optical pickup apparatus

Optical pickup device

Objective optical element and optical pickup apparatus

Objective optical element, optical pick-up apparatus, and optical i...

Objective lens for optical pick-up apparatus and optical pick-up ap...