Inventor

KOYAMA MASAHARU

13 patents

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

HITACHI LTD

10 patents

US4412214AOct 25, 1983

Liquid crystal display element having non-display electrode arrangement

HITACHI LTD43 citations92

US4458987AJul 10, 1984

Multi-layer liquid crystal panel with sealing members and retainers in registration

HITACHI LTD38 citations89

US4341445AJul 27, 1982

Field effect type liquid crystal display elements provided with polarizing plates

HITACHI LTD12 citations71

US4070749AJan 31, 1978

Method of manufacturing liquid crystal display devices

HITACHI LTD16 citations70

DIRECTOR GENERAL PRINTING BURE

2 patents

US5582103ADec 10, 1996

Method for making an anti-counterfeit latent image formation object for bills, credit cards, etc.

DIRECTOR GENERAL PRINTING BURE153 citations98

US5437897AAug 1, 1995

Anti-counterfeit latent image formation object for bills, credit cards, etc. and method for making the same

DIRECTOR GENERAL PRINTING BURE78 citations95

MITSUBISHI ELECTRIC CORP

1 patent

US4910478AMar 20, 1990

Amplifier circuit and method of controlling output power thereof

MITSUBISHI ELECTRIC CORP32 citations92

KOYAMA MASAHARU

HITACHI LTD

Liquid crystal display element having non-display electrode arrangement

Multi-layer liquid crystal panel with sealing members and retainers in registration

Liquid crystal display element and production thereof

Process for the manufacture of liquid crystal display element

Fill port seal with first and second photosensitizers

Liquid crystal display apparatus

Liquid crystal display cells

Process for producing transparent electroconductive film