P

Inventor

UMETANI MAKOTO

JP22 patents
⚠️ This page may combine multiple inventors who share the name “UMETANI MAKOTO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

20 patents
US5276538AJan 4, 1994

Display device with micro lens array

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD123 citations97
US5436764AJul 25, 1995

Die for forming a micro-optical element, manufacturing method therefor, micro-optical element and manufacturing method therefor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD57 citations96
US4842633AJun 27, 1989

Method of manufacturing molds for molding optical glass elements and diffraction gratings

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD121 citations96
US6119485ASep 19, 2000

Press-molding die, method for manufacturing the same and glass article molded with the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD41 citations92
US6009728AJan 4, 2000

Die for press-molding optical elements

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD37 citations92
US6003336ADec 21, 1999

Method of manufacturing a die for press-molding optical elements

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations92
US5700307ADec 23, 1997

Die for press-molding optical elements

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD28 citations92
US5405652AApr 11, 1995

Method of manufacturing a die for use in molding glass optical elements having a fine pattern of concavities and convexities

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD40 citations92
US5171347ADec 15, 1992

Method of manufacturing glass optical element

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD30 citations92
US4953385ASep 4, 1990

Information storage stamper and method of manufacturing disks using the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD37 citations92
US5425118AJun 13, 1995

Optical component mounting substrate and method of producing the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD29 citations91
US5171348ADec 15, 1992

Die for press-molding optical element

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD48 citations91
US6989114B1Jan 24, 2006

Micro-shape transcription method, micro-shape transcription apparatus, and optical-component manufacture method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations84
US5759457AJun 2, 1998

Method for manufacturing an optical element

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations84
US5120343AJun 9, 1992

Apparatus for producing optical glass element

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD21 citations81
US5087279AFeb 11, 1992

Method of producing optical glass element and production apparatus using this method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations81
US6151917ANov 28, 2000

Press-molding die for magnetic-disk glass substrate

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations73
US5759221AJun 2, 1998

Method of press molding glass optical elements

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations73
US5538528AJul 23, 1996

Glass optical element press-molding die having a tantalum containing alloy surface layer

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations73
US5904747AMay 18, 1999

Method of molding optical articles

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations62

SUMITA OPTICAL GLASS

1 patent

TANAKA YASUHIRO

1 patent