P

Inventor

OGAWA TETSU

JP48 patents
⚠️ This page may combine multiple inventors who share the name “OGAWA TETSU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

22 patents
US4632514ADec 30, 1986

Color liquid crystal display apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD164 citations99
US6661484B1Dec 9, 2003

Retardation matching using the liquid crystal twist angle for different color dots within a pixel of a reflective color LCD

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD110 citations97
US6300990B1Oct 9, 2001

Reflective LCD device with low visual angle dependency and high contrast

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD47 citations96
US6122027ASep 19, 2000

Liquid crystal display device with color filters between reflector and transparent conductor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD57 citations95
US6522378B1Feb 18, 2003

Liquid crystal display and manufacture therefore

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD24 citations92
US6278508B1Aug 21, 2001

Reflection type liquid crystal display device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations92
US6130735AOct 10, 2000

Reflective liquid crystal display device having front scattering films

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD42 citations92
US6055033AApr 25, 2000

Color liquid crystal display device using polymer and polarization films

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations92
US5056897AOct 15, 1991

Spatial light modulating element and neural network circuit

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD29 citations92
US6404471B1Jun 11, 2002

Reflection liquid crystal display

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations84
US6144432ANov 7, 2000

Reflective liquid crystal display device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations84
US6597421B1Jul 22, 2003

Reflective liquid crystal display element and image display device using the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD13 citations83
US4725460AFeb 16, 1988

Optical filter and the method of preparing the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations82
US6567149B1May 20, 2003

Reflection liquid crystal display device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations73
US6480251B1Nov 12, 2002

Reflection liquid crystal display element

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD13 citations73
US6011605AJan 4, 2000

Liquid crystal display with a metallic reflecting electrode having a two layer film of Ti and Al alloy

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations73
US5982463ANov 9, 1999

Liquid crystal display device capable of displaying color without a color filter

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations73
US5373378ADec 13, 1994

Active matrix type liquid crystal display device with peripheral pixel electrodes attached directly to signal lines

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD13 citations73
US6633352B2Oct 14, 2003

Reflection type liquid crystal display device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations62
US6426785B2Jul 30, 2002

Reflective liquid crystal display device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations62
US6297863B1Oct 2, 2001

Reflective liquid crystal display device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations62
US6608659B1Aug 19, 2003

Reflective liquid crystal display apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD1 citations52

SONY GROUP CORP

14 patents
US11763457B2Sep 19, 2023

Information generation method, information generation apparatus, and program

SONY GROUP CORP2 citations73
US11536656B2Dec 27, 2022

Information processing device, information processing method, and program

SONY GROUP CORP2 citations73
US11823447B2Nov 21, 2023

Information processing apparatus, information processing method, program, and information processing system

SONY GROUP CORP1 citations62
US11398060B2Jul 26, 2022

Information processing device, information processing method, and program

SONY GROUP CORP1 citations62
US11231367B2Jan 25, 2022

Information processing apparatus, information processing method, program, and sensing apparatus

SONY GROUP CORP1 citations62
US12567121B2Mar 3, 2026

Image management method and data structure of metadata

SONY GROUP CORP0 citations58
US12456295B2Oct 28, 2025

Image processing method and data structure of metadata

SONY GROUP CORP0 citations58
US11958633B2Apr 16, 2024

Artificial satellite and control method thereof

SONY GROUP CORP0 citations58
US12452503B2Oct 21, 2025

Imaging device

SONY GROUP CORP0 citations52
US12111251B2Oct 8, 2024

Information processing apparatus, information processing method, program, and sensing system

SONY GROUP CORP0 citations52
US11922687B2Mar 5, 2024

Information processing apparatus, information processing method, and program

SONY GROUP CORP0 citations52
US12411390B2Sep 9, 2025

Imaging apparatus and lens apparatus including lens sections with different angles of view

SONY GROUP CORP0 citations51
US11399161B2Jul 26, 2022

Signal processing device, signal processing method, image capture device, and medical image capture device

SONY GROUP CORP0 citations49
US12077321B2Sep 3, 2024

Imaging method of satellite system, and transmission device

SONY GROUP CORP0 citations48

CANON DENSHI KK

6 patents

HONDA MOTOR CO LTD

5 patents

SONY CORP

1 patent