Inventor

Tomohisa Yamamoto

Inventor

Nishikamo-gun, JP

Overview

22→

Patents

1986–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 22 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G01Rprimary

G01RMeasuring electric variables8%

B62MRider propulsion of wheeled vehicles or sledges5%

G05FSystems for regulating electric or magnetic variables5%

H02JElectric power networks5%

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems5%

H03KPulse technique5%

H10DInorganic electric semiconductor devices5%

Y02TClimate change mitigation technologies related to transportation5%

B27KProcesses, apparatus or selection of substances for impregnating, staining, dyeing, bleaching of wood or similar materials, or treating of wood or similar materials with permeant liquids, not otherwise provided for3%

B27NManufacture by dry processes of articles, with or without organic binding agents, made from particles or fibres consisting of wood or other lignocellulosic or like organic material3%

PatentTitleYear

10,703,026Method for producing cork stopper and cork stopper2020 10,000,255Bicycle drive unit and bicycle equipped with the drive unit2018 9,896,152'Bicycle transmission system'2018 7,508,165'Cell voltage equalization apparatus for combined battery pack including circuit driven by power supplied by the combined battery pack'2009 7,498,868'Current mirror circuit and constant current circuit having the same'2009 7,471,064'Circuit system for a battery electronic control unit'2008 7,149,069'Overtemperature detection device and semiconductor integrated circuit device'2006 6,870,497'Radio wave absorber and production method thereof'2005 6,861,880'Driving circuit for push-pull operated transistors'2005 6,822,404'Phase-controlled, multi-electrode type of AC discharge light source'2004 6,777,070'Antireflection material and polarizing film using the same'2004 6,647,885'Marking system, marking method and marking apparatus'2003 6,603,673'Charge-pump circuit and a load-driving circuit utilizing the same'2003 6,075,403'Charge pump circuit'2000 6,069,520'Constant current circuit using a current mirror circuit and its application'2000 5,661,332'Semiconductor diffused resistor'1997 5,563,486'Pulse motor driver'1996 5,550,465'Driving apparatus for cross-coil type analog indicating instrument'1996 5,357,147'Wave-shaping apparatus'1994 5,313,155'Driving apparatus for cross-coil type analog indicating instrument having reduced ripple'1994 5,121,347'Apparatus for manipulating triangular wave signals used to drive a gauge having a pair of coils arranged in quadrature'1992 4,567,435'Method and apparatus for continuously measuring distance utilizing eddy current and having temperature difference influence elimination'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–1997Patents assigned to NIPPON DENSO CO (6)· patent assignee history

1994–2005Based in Aichi, JP· patent location history

1996–2009Based in Nishikamo-gun, JP· patent location history

2000–2009Patents assigned to DENSO CORP (8)· patent assignee history

2003–2004Patents assigned to TOMOEGAWA PAPER CO LTD (2)· patent assignee history

2003–2004Based in Shizuoka, JP· patent location history

2005–2020Patents assigned to UCHIYAMA MFG (2)· patent assignee history

2005–2020Based in Okayama, JP· patent location history

2018Patents assigned to SHIMANO KK (2)· patent assignee history

2018Based in Osaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DENSO CORP	8	2000–2009
NIPPON DENSO CO	6	1992–1997
SHIMANO KK	2	2018
TOMOEGAWA PAPER CO LTD	2	2003–2004
UCHIYAMA MFG	2	2005–2020

Locations

Location	Patents	Span
Nishikamo-gun, JP	7	1996–2009
Aichi, JP	6	1994–2005
Okayama, JP	2	2005–2020
Shizuoka, JP	2	2003–2004
Osaka, JP	1	2018