Inventor
YAMAMOTO TAMOTSU
US81 patents
⚠️ This page may combine multiple inventors who share the name “YAMAMOTO TAMOTSU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
31 patentsUS7250746B2Jul 31, 2007
Current mode switching regulator with predetermined on time
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD105 citations98
US6664951B1Dec 16, 2003
Mobile communication terminal equipment and touch panel switch used therein
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD98 citations97
US6518958B1Feb 11, 2003
Electronic apparatus having plural entry switches
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD102 citations97
US7323959B2Jan 29, 2008
Trackball device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD47 citations92
US7176668B2Feb 13, 2007
Switching regulator with advanced slope compensation
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD33 citations92
US6909422B2Jun 21, 2005
Track ball device and electronic apparatus using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD24 citations92
US6864679B2Mar 8, 2005
Rotary manipulation type input device and electronic apparatus using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD45 citations92
US6794982B2Sep 21, 2004
Multidirectional input device and electronic apparatus comprising it
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD25 citations92
US6750408B2Jun 15, 2004
Multi-directional operation switch and multi-directional input device using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD33 citations92
US6653579B2Nov 25, 2003
Multi-directional input joystick switch
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD24 citations92
US6504269B1Jan 7, 2003
Input device and electronic appliance using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22 citations92
US6388212B1May 14, 2002
Push and rotary operating type electronic component
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD49 citations92
US6229103B1May 8, 2001
Electronic component with built-in push switch driven by rotary and pushing operation of an operating knob
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22 citations92
US5951398ASep 14, 1999
Encoder for game machine
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD24 citations92
US5705778AJan 6, 1998
Rotary and pushbutton switch operating mechanism including flexible connection arrangement located between rotor and shaft
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD44 citations92
US5593023AJan 14, 1997
Rotatively-operated electronic component with push switch
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD24 citations92
US7199636B2Apr 3, 2007
Active diode
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD47 citations91
US5613600AMar 25, 1997
Rotatively-operated electronic component with push switch
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD38 citations91
US7292015B2Nov 6, 2007
High efficiency, high slew rate switching regulator/amplifier
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD25 citations88
US7282894B2Oct 16, 2007
Method and apparatus for performing lossless sensing and negative inductor currents in a high side switch
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations84
US7126318B2Oct 24, 2006
Higher order slope compensation for fixed frequency current mode switching regulators
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations84
US6906269B2Jun 14, 2005
Multi-directional slide switch
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations84
US7295187B2Nov 13, 2007
Electronic apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations83
US7274354B2Sep 25, 2007
Portable electronic apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations83
US6857879B2Feb 22, 2005
Coupling device and folding electronic apparatus using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations83
US7439461B2Oct 21, 2008
Neutral position returning mechanism and input device using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74
US7067751B2Jun 27, 2006
Switch
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations74
US5595288AJan 21, 1997
Thin switch including domed contact
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations74
US5086221AFeb 4, 1992
Rotary encoder having stationary central support shaft
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations74
US5070238ADec 3, 1991
Rotary encoder having circular magnet
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations74
US6841743B2Jan 11, 2005
Multidirectional control switch and multidirectional input device using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations73
FUJITSU LTD
9 patentsUS6645671B2Nov 11, 2003
Lithium secondary battery, anode for lithium secondary battery, and method for manufacturing the anode
FUJITSU LTD34 citations92
US6136475AOct 24, 2000
Lithium secondary battery and cathode composition therefor
FUJITSU LTD20 citations92
US7416985B2Aug 26, 2008
Semiconductor device having a multilayer interconnection structure and fabrication method thereof
FUJITSU LTD29 citations90
US9666541B2May 30, 2017
Electronic device, manufacturing method of the same, and network system
FUJITSU LTD5 citations73
US9595736B2Mar 14, 2017
Lithium-ion conductor and all-solid lithium-ion secondary battery
FUJITSU LTD2 citations73
US7338905B2Mar 4, 2008
Semiconductor device manufacture method
FUJITSU LTD8 citations73
US6187477B1Feb 13, 2001
Lithium secondary battery and cathode composition therefor
FUJITSU LTD13 citations73
US9306418B2Apr 5, 2016
Uninterruptible power-supply apparatus and method of using the same
FUJITSU LTD3 citations71
US6943115B2Sep 13, 2005
Semiconductor device and method of manufacture thereof
FUJITSU LTD10 citations71
PANASONIC CORP
2 patentsIKEGAI IRON WORKS LTD
2 patentsUS4569115AFeb 11, 1986
Method and apparatus for controlling the depth of cut in the radial direction of a rotary cutting tool in a machine tool
IKEGAI IRON WORKS LTD35 citations92
US4195250AMar 25, 1980
Automatic measuring and tool position compensating system for a numerically controlled machine tool
IKEGAI IRON WORKS LTD33 citations92
OTICS CORP
2 patentsINOUE HIROTO
1 patentYAMAMOTO TAMOTSU
1 patentNAKA YOSHIO
1 patentPANASONIC IP MAN CO LTD
1 patentShowing the top 50 of 81 patents by PatentIndex Score.