P

Inventor

NAKAYAMA TAKAHIRO

JP98 patents
⚠️ This page may combine multiple inventors who share the name “NAKAYAMA TAKAHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

17 patents
US5554911ASep 10, 1996

Light-emitting elements

HITACHI LTD208 citations99
US5559400ASep 24, 1996

Variable wavelength luminescent device and control method therefor

HITACHI LTD56 citations96
US5847506ADec 8, 1998

Organic light emitting device and substrate plate for it

HITACHI LTD80 citations94
US7084566B2Aug 1, 2006

Organic light emitting element with insulation film and metal reflection film

HITACHI LTD16 citations93
US6563261B1May 13, 2003

Organic light emitting element and method of producing the same

HITACHI LTD15 citations93
US5682402AOct 28, 1997

Organic luminescent devices with a multiplex structure

HITACHI LTD44 citations93
US4945009AJul 31, 1990

Electroluminescence device

HITACHI LTD35 citations92
US4877994AOct 31, 1989

Electroluminescent device and process for producing the same

HITACHI LTD25 citations92
US4857802AAug 15, 1989

Thin film EL element and process for producing the same

HITACHI LTD24 citations92
US8040043B2Oct 18, 2011

Display device and luminous panel

HITACHI LTD9 citations84
US6133691AOct 17, 2000

Organic light emitting element with resonant structure

HITACHI LTD13 citations82
US6909232B2Jun 21, 2005

Organic light emitting element and method of producing the same

HITACHI LTD6 citations74
US6787991B2Sep 7, 2004

Organic light emitting element and method of producing the same

HITACHI LTD6 citations74
US5200277AApr 6, 1993

Electroluminescent device

HITACHI LTD14 citations74
US5182491AJan 26, 1993

Thin film electroluminescent device

HITACHI LTD10 citations74
US5110792AMay 5, 1992

Method and apparatus of optical modulation using superconductive oxide material

HITACHI LTD16 citations74
US5099172AMar 24, 1992

Thin film electroluminescent device

HITACHI LTD9 citations74

ASMO CO LTD

9 patents

TOYOTA MOTOR CO LTD

5 patents

NAKAYAMA TAKAHIRO

3 patents

ASAHI GLASS CO LTD

3 patents

MUROYAMA MASANORI

3 patents

RICOH KK

2 patents

SUMITOMO BAKELITE CO

1 patent

(unassigned)

1 patent

RICOH CO LTD

1 patent

HITACHI DISPLAYS LTD

1 patent

TANAKA SHUJI

1 patent

SONY INTERACTIVE ENTERTAINMENT INC

1 patent

CHIKAKI SHINICHI

1 patent

CANON KK

1 patent

Showing the top 50 of 98 patents by PatentIndex Score.