P

Inventor

YOSHIDA AKIHIKO

JP97 patents
⚠️ This page may combine multiple inventors who share the name “YOSHIDA AKIHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

36 patents
US5150283ASep 22, 1992

Electric double layer capacitor and method for producing the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD184 citations97
US5889459AMar 30, 1999

Metal oxide film resistor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD103 citations96
US5450279ASep 12, 1995

Electric double layer capacitor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD124 citations96
US4737889AApr 12, 1988

Polarizable electrode body and method for its making

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD109 citations96
US4597028AJun 24, 1986

Electric double layer capacitor and method for producing the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD68 citations96
US4562511ADec 31, 1985

Electric double layer capacitor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD166 citations96
US5381303AJan 10, 1995

Electric double layer capacitor and method for manufacture thereof

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD70 citations95
US6818339B1Nov 16, 2004

Polymer electrolyte type fuel cell

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD30 citations93
US4184192AJan 15, 1980

Solid electrolyte compacitor using low resistivity metal oxide as cathode collector

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD37 citations93
US6168869B1Jan 2, 2001

Anti-microbial aluminum product and method for producing the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD26 citations92
US5961919AOct 5, 1999

Deodorizing and sterilizing device having catalyst deterioration sensing function

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22 citations92
US5667888ASep 16, 1997

Color filters and methods of manufacturing the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD25 citations92
US5578248ANov 26, 1996

Composition for use in a transparent and electrically conductive film and a method for making the film

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations92
US5406852AApr 18, 1995

Pressure sensor having a resistor element on a glass dryer with electrodes connected thereto

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations92
US5403616AApr 4, 1995

Method for forming patterned transparent conducting film

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD45 citations92
US5245492ASep 14, 1993

Magnetic head

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD24 citations92
US5242722ASep 7, 1993

Strain sensor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD25 citations92
US5346523ASep 13, 1994

Method of molding chalcogenide glass lenses

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD33 citations91
US5315434AMay 24, 1994

Infrared-transmissive lens and human body detecting sensor using the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD32 citations91
US4276128AJun 30, 1981

Humidity sensing element of electric capacitance change type and method of producing same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD35 citations91
US4105513AAug 8, 1978

Solid electrolyte capacitor having metallic cathode collector in direct contact with manganese dioxide electrolyte and method of producing same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD34 citations89
US7220514B2May 22, 2007

Polymer electrolyte fuel cell

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations84
US7150934B2Dec 19, 2006

Electrolyte film electrode union, fuel cell containing the same and process for producing them

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations84
US7060384B2Jun 13, 2006

Polymer electrolyte fuel cell

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD13 citations84
US6991870B2Jan 31, 2006

Gas diffusion electrode and fuel cell using this

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations84
US4217623AAug 12, 1980

Humidity sensor of capacitance change type

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations82
US4186423AJan 29, 1980

Solid electrolyte capacitor using oxide of Ru, Rh, Re, Os or Ir as electrolyte

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD24 citations82
US4282480AAug 4, 1981

Apparatus for humidity detection

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD24 citations79
US7201993B2Apr 10, 2007

Polymer electrolyte fuel cell

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations74
US7097932B1Aug 29, 2006

Polymer electrolytic fuel cell and method for producing the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74
US5998011ADec 7, 1999

Composition for use in a transparent and electrically conductive film and a method for making the film

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations74
US5224001AJun 29, 1993

Magnetic head

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations74
US5181947AJan 26, 1993

Method for manufacturing a glass fiber

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations74
US4921686AMay 1, 1990

Method of carbonizing and activating fiber materials

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations74
US4814145AMar 21, 1989

Apparatus for carbonizing and activating fiber materials

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations74
US4046645ASep 6, 1977

Method of manufacturing solid electrolytic capacitor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations74

NGK INSULATORS LTD

5 patents

TAKAHASHI YOSUKE

2 patents

SHINETSU CHEMICAL CO

2 patents

ZEXEL CORP

1 patent

SHOWA SHELL SEKIYU

1 patent

HITACHI LTD

1 patent

SONY CORP

1 patent

TOKYO ELECTRIC POWER CO

1 patent

Showing the top 50 of 97 patents by PatentIndex Score.