Inventor

Hirofumi Nakano

Inventor

Tokyo, JP

Overview

39→

Patents

1989–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 39 as inventor

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

H04Bprimary

H04BTransmission9%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h109%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them8%

H04NPictorial communication, e.g. television8%

H10DInorganic electric semiconductor devices8%

C23CCoating metallic material6%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h106%

H04JMultiplex communication5%

B22FWorking metallic powder3%

B29CShaping or joining of plastics3%

PatentTitleYear

10,630,522Communication system, communication device, and communication method2020 10,193,126Battery terminal, method for manufacturing battery terminal, and battery2019 9,453,278'Deposition device and deposition method'2016 9,437,865'Active material for lithium ion secondary battery, and lithium ion secondary battery'2016 9,111,649'Tamper resistant semiconductor device with access control'2015 8,829,813'Correction circuit, drive circuit, light-emitting device and correction method of current pulse waveform'2014 8,438,359'Memory management method, information processing device, program creation method, and program'2013 7,536,110'Optical transmission system for substantially equalizing the output signal level among frequency bands and substantially lowering the signal-to-noise ratio'2009 7,391,974'Wavelength division multiplexing optical transmission equipment and method of amplifying optical wavelength division multiplexed signals'2008 7,272,325'Optical transmission system for substantially equalizing the output signal level among frequency bands and substantially lowering the signal-to-noise ratio'2007 7,194,210'Wavelength division multiplexing optical transmission equipment and method of amplifying optical wavelength division multiplexed signals'2007 7,124,789'Automatic air feeding mechanism for pneumatic tires, and pneumatic tire connecting device'2006 7,116,908'Optical transmission system for substantially equalizing the output signal level among frequency bands and substantially lowering the signal-to-noise ratio'2006 6,603,190'Semiconductor device'2003 6,515,920'Semiconductor data storing circuit device, method of checking the device and method of relieving the device from defective cell'2003 6,335,265'Method for manufacturing semiconductor device and semiconductor device'2002 6,222,286'Stepping motor with rust inhibiting and eddy current minimizing characteristics'2001 6,191,819'Picture-taking apparatus having viewpoint detecting means'2001 6,124,892'Panhead device for movably supporting an apparatus'2000 6,018,630'Camera viewfinder having a viewpoint detecting apparatus'2000 5,990,954'Electronic imaging apparatus having a functional operation controlled by a viewpoint detector'1999 5,869,903'Sealed semiconductor device including opposed substrates and metal wall'1999 5,857,121'Camera utilizing detection of visual line'1999 5,796,132'Semiconductor device'1998 5,745,174'Viewpoint detection apparatus with selected correction coefficent generation'1998 5,726,468'Compound semiconductor bipolar transistor'1998 5,670,801'Heterojunction bipolar transistor'1997 5,648,692'Stator yoke and method of producing same'1997 D0376381'Pair of spectacles without earstems'1996 5,570,156'Camera utilizing detection of visual line'1996 5,539,227'Multi-layer wiring'1996 D0365591'Eyeglasses'1995 5,393,344'Apparatus for molten metal plating'1995 5,308,659'Method of molten metal plating with slit nozzle'1994 5,260,169'Method for manufacturing semiconductor device'1993 5,135,375'Apparatus for packing permanent magnet powder'1992 5,004,580'Method and apparatus for packing permanent magnet powder'1991 4,902,646'MESFET process employing dummy electrodes and resist reflow'1990 4,871,419'Method of forming pattern of a two-layer metal film'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2003Patents assigned to MITSUBISHI ELECTRIC CORP (11)· patent assignee history

1990–1996Based in Itami, JP· patent location history

1991–1992Patents assigned to FUJI ELECTROCHEMICAL CO LTD (2)· patent assignee history

1991–2001Based in Toyohashi, JP· patent location history

1996–2001Patents assigned to CANON KK (7)· patent assignee history

1996–2015Based in Kanagawa, JP· patent location history

1997–2020Based in Tokyo, JP· patent location history

1998–2009Based in Yokohama, JP· patent location history

2006–2009Patents assigned to HITACHI LTD (5)· patent assignee history

2013–2015Patents assigned to NAKANO HIROFUMI (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITSUBISHI ELECTRIC CORP	11	1989–2003
CANON KK	7	1996–2001
HITACHI LTD	5	2006–2009
NAKANO HIROFUMIself	3	2013–2015
FUJI ELECTROCHEMICAL CO LTD	2	1991–1992

Locations

Location	Patents	Span
Tokyo, JP	12	1997–2020
Yokohama, JP	8	1998–2009
Kanagawa, JP	4	1996–2015
Toyohashi, JP	4	1991–2001
Itami, JP	3	1990–1996