Masaaki Sunohara

Person

Hirakata, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing preforms used in molding optical elements...
- Patent number 6,007,746
- Issue date Dec 28, 1999
- Matsushita Electric Industrial Co., Ltd.
- Jun Murata
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method for making optical preforms and optical elements by press
- Patent number 5,965,069
- Issue date Oct 12, 1999
- Matsushita Electric Industrial Co., Ltd.
- Jun Murata
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method and device for manufacturing optical elements
- Patent number 5,718,850
- Issue date Feb 17, 1998
- Matsushita Electric Industrial Co., Ltd.
- Toshiaki Takano
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of producing glass blank
- Patent number 5,322,541
- Issue date Jun 21, 1994
- Matsushita Electric Industrial Co., Ltd.
- Yoshiyuki Shimizu
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method of producing the optical element
- Patent number 5,201,927
- Issue date Apr 13, 1993
- Matsushita Electric Industrial Co., Ltd.
- Shoji Nakamura
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Machine for molding optical element
- Patent number 5,188,652
- Issue date Feb 23, 1993
- Matsushita Electric Industrial Co., Ltd.
- Shoji Nakamura
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Die for press-molding optical element
- Patent number 5,171,348
- Issue date Dec 15, 1992
- Matsushita Electric Industrial Co., Ltd.
- Makoto Umetani
- B32 - LAYERED PRODUCTS
Information Patent Grant
Method of manufacturing optical element
- Patent number 5,160,361
- Issue date Nov 3, 1992
- Matsushita Electric Industrial Co., Ltd.
- Jun Murata
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Apparatus for producing optical glass element
- Patent number 5,120,343
- Issue date Jun 9, 1992
- Matsushita Electric Industrial Co., Ltd.
- Hideto Monji
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method of producing optical glass element and production apparatus...
- Patent number 5,087,279
- Issue date Feb 11, 1992
- Matsushita Electric Industrial Co., Ltd.
- Hideto Monji
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method of press molding lens material
- Patent number 5,032,160
- Issue date Jul 16, 1991
- Matsushita Electric Industrial Co., Ltd.
- Jun Murata
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Mold for molding optical elements
- Patent number 5,015,280
- Issue date May 14, 1991
- Matsushita Electric Industrial Co., Ltd.
- Takayuki Kimoto
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Objective lens for optical disk system and optical head using the same
- Patent number 4,927,247
- Issue date May 22, 1990
- Matsushita Electric Industrial Co., Ltd.
- Yasuhiro Tanaka
- G02 - OPTICS
Information Patent Grant
Method of molding plastic and injection compression molding apparat...
- Patent number 4,849,151
- Issue date Jul 18, 1989
- Matsushita Electric Industrial Co., Ltd.
- Toru Tamura
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Substrate for an optical disc
- Patent number 4,701,770
- Issue date Oct 20, 1987
- Matsushita Electric Industrial Co., Ltd.
- Akio Ito
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Optical disc and method of manufacturing
- Patent number 4,583,102
- Issue date Apr 15, 1986
- Matsushita Electric Industrial Co., Ltd.
- Tooru Tamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Upright injection-compression pressing machine for the manufacture...
- Patent number 4,427,353
- Issue date Jan 24, 1984
- Matsushita Electric Industrial Co., Ltd.
- Shoji Omiya
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL MEMBER AND OPTICAL SYSTEM, OPTICAL UNIT AND OPTICAL DEVICE...
- Publication number 20100271706
- Publication date Oct 28, 2010
- PANASONIC CORPORATION
- Kazuhiro Yamada
- G02 - OPTICS
Information Patent Application
Method for producing optical element, optical element, and optical...
- Publication number 20060073626
- Publication date Apr 6, 2006
- Matsushita Electric Industrial Co., Ltd.
- Yoshiyuki Shimizu
- G02 - OPTICS
Information Patent Application
Mold plate suction jig molding metal mold dissembling/assembling ap...
- Publication number 20040232573
- Publication date Nov 25, 2004
- Shoji Nakamura
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Masaaki Sunohara

Person

Patents Grantslast 30 patents

Method for manufacturing preforms used in molding optical elements...

Method for making optical preforms and optical elements by press

Method and device for manufacturing optical elements

Method of producing glass blank

Method of producing the optical element

Machine for molding optical element

Die for press-molding optical element

Method of manufacturing optical element

Apparatus for producing optical glass element

Method of producing optical glass element and production apparatus...

Method of press molding lens material

Mold for molding optical elements

Objective lens for optical disk system and optical head using the same

Method of molding plastic and injection compression molding apparat...

Substrate for an optical disc

Optical disc and method of manufacturing

Upright injection-compression pressing machine for the manufacture...

Patents Applicationslast 30 patents

OPTICAL MEMBER AND OPTICAL SYSTEM, OPTICAL UNIT AND OPTICAL DEVICE...

Method for producing optical element, optical element, and optical...

Mold plate suction jig molding metal mold dissembling/assembling ap...