P

Inventor

ASAKURA HIROYUKI

JP57 patents
⚠️ This page may combine multiple inventors who share the name “ASAKURA HIROYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

40 patents
US7013090B2Mar 14, 2006

Transmitting circuit apparatus and method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD91 citations98
US5377286ADec 27, 1994

Optical fiber array and method of making the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD48 citations95
US6990155B2Jan 24, 2006

Wireless quadrature modulator transmitter using E/O and O/E connectives

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations93
US6643470B1Nov 4, 2003

FM signal converter, FM signal optical transmitter and FM signal optical receiver

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD31 citations93
US6314228B1Nov 6, 2001

Optical waveguide component and a method of producing the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD28 citations93
US6181718B1Jan 30, 2001

Electronically cooled semiconductor laser module with modified ground line inductance

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD45 citations93
US6160931ADec 12, 2000

Wavelength-multiplexing optical transmission system provided with wavelength selectors

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations93
US6120191ASep 19, 2000

Laser diode module

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD49 citations93
US5859943AJan 12, 1999

Optical module and method for manufacturing the optical

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD29 citations93
US5778120AJul 7, 1998

Optical module and method for manufacturing the optical modules

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD33 citations93
US5559914ASep 24, 1996

Components for optical circuits and method of manufacturing the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations93
US5457573AOct 10, 1995

Diffraction element and an optical multiplexing/demultiplexing device incorporating the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD48 citations93
US5450512ASep 12, 1995

Optical tap

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD42 citations93
US5448398ASep 5, 1995

Diffraction grating unit and second-harmonic generator employing the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD28 citations93
US6504975B1Jan 7, 2003

Coupling lens and semiconductor laser module

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD50 citations92
US6445857B1Sep 3, 2002

Optical waveguide part, its manufacturing method, connection member, optical part, method for connecting optical waveguide part, and optical element

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD36 citations92
US5982793ANov 9, 1999

Semiconductor laser module with internal matching circuit

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations92
US5321785AJun 14, 1994

Optical fiber array and method of making the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations92
US5311606AMay 10, 1994

Optical filter and optical amplifier employing said optical filters

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD27 citations92
US4673274AJun 16, 1987

Automatic focusing apparatus for camera

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD26 citations91
US5007709AApr 16, 1991

Diffraction grating and manufacturing method thereof

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD44 citations90
US5420416AMay 30, 1995

Light wavelength selection device and method using diffraction grating with peak detection

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD52 citations89
US6989114B1Jan 24, 2006

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

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations84
US6826418B2Nov 30, 2004

Radio circuit and control method of radio circuit

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations84
US7014316B2Mar 21, 2006

Optical lens with marking and manufacturing method thereof

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations74
US6658216B1Dec 2, 2003

Voltage controlled oscillator, FM signal optical transmitter, FM signal optical receiver and FM signal optical transmission system

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations74
US6606442B2Aug 12, 2003

Optical waveguide component and a method of producing the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations74
US6597480B1Jul 22, 2003

Wavelength tunable filter apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations74
US6496623B2Dec 17, 2002

Optical device, optical communication component and optical transmission apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations74
US6452706B1Sep 17, 2002

FM signal optical transmission apparatus and FM signal optical reception apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations74
US6904220B2Jun 7, 2005

Optical waveguide, optical module, and method for producing same module

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations73
US4850692AJul 25, 1989

Semiconductor light position detector for rangefinder

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations71
US6964528B2Nov 15, 2005

Optical mount substrate, optical module, optical transmitter-receiver, optical transmitter-receiver system, and manufacturing method of optical mount substrate

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations63
US6826344B2Nov 30, 2004

Optical element and method of fabrication thereof

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations63
US6465858B2Oct 15, 2002

Semiconductor device package for optical communication device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations63
US6430340B1Aug 6, 2002

Wavelength tunable filter device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations63
US6186673B1Feb 13, 2001

Package for optical semiconductor module

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations63
US6946926B2Sep 20, 2005

Wired transmission path with plural equidistant differential conductors

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations62
US6886996B2May 3, 2005

Optical waveguide, optical module, and method for producing the same module

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations62
US4758764AJul 19, 1988

Light-emitting device for automatic focus adjustment apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations62

SONY CORP

3 patents

SHINAGAWA REFRACTORIES CO

2 patents

DAINIPPON PRINTING CO LTD

1 patent

FUJI PHOTO FILM CO LTD

1 patent

FUJIKURA TATSUO

1 patent

MITSUI CHEMICALS INC

1 patent

JTEKT CORP

1 patent

Showing the top 50 of 57 patents by PatentIndex Score.