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Inventor

Yoshiaki Takayanagi

Inventor
Yokohama, JP

Overview

66→
Patents
1983–2020
Patent span
Performing operations
Primary field (CPC B)

Patents· 66 as inventor

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

B41Jprimary
B41JTypewriters38%
G03GElectrography20%
B27BSaws for wood or similar material4%
F02BInternal-combustion piston engines4%
G06KGraphical data reading4%
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 systems3%
H04NPictorial communication, e.g. television3%
F02FCylinders, pistons or casings, for combustion engines2%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof2%
H03MCoding2%
PatentTitleYear
10,759,570Tank cap20209,903,397'Oil pump'20189,869,235'Stratified scavenging two-stroke engine'20189,718,208'Chain tension adjusting apparatus for chain saw'20179,676,115'Guide bar fastening device for chain saw'20179,573,208'Portable working machine'20179,457,590'Printing apparatus, method for controlling printing apparatus, and storage medium'20169,249,716'Stratified scavenging two-stroke engine'20169,206,736'Stratified scavenging two-stroke engine'20159,143,038'Power supply apparatus and printing apparatus'20158,814,327'Power supply apparatus and printing apparatus'20148,770,159'Stratified scavenging two-stroke engine'20147,832,841'Printing apparatus and printing method for discharging fine ink droplets using an ion emitter'20107,681,977'Temperature detection circuit for recording head and recording device therewith'20107,500,739'Ink jet recording apparatus and method using replaceable recording heads'20097,237,863'Temperature detection circuit for recording head and recording device therewith'20076,860,579'Ink jet recording apparatus and method using replaceable recording heads'20056,749,278'Ink jet recording apparatus and control method for recording apparatus'20046,565,184'Ink jet recording apparatus with recovery based on manufacturing time'20036,457,794'Ink jet recording method and apparatus for controlling recording signal parameters'20026,435,649'Ink jet recording apparatus'20026,310,636'Ink jet recording method and apparatus for driving recording head based on head temperature'20016,257,701'Ink jet recording apparatus having an exchangeable ink jet head cartridge mountable thereon and recovery method of said cartridge'20016,247,780'Shading correction processing for an image forming apparatus'20016,231,155'Image forming apparatus'20016,217,146'Ink jet recording apparatus'20016,155,663'Image recording method and apparatus'20006,126,266'Ink jet recording apparatus and method using replaceable recording heads'20006,116,710'Ink jet recording method and apparatus using thermal energy'20006,106,097'Ink jet recording apparatus having an exchangeable ink jet head cartridge mountable thereon and recovery method of said cartridge'20005,988,783'Device and method for determining sufficiency of ink supply for ink jet recording apparatus'19995,982,114'Control apparatus for copying machine or the like'19995,956,052'Image forming apparatus with means for correcting image density non-uniformity'19995,903,289'Control circuit of a compact recording apparatus'19995,894,314'Ink jet recording apparatus using thermal energy'19995,870,114'Image recording apparatus with improved conveying system for recording medium'19995,861,895'Ink jet recording method and apparatus controlling driving signals in accordance with head temperature'19995,798,775'Ink jet recording apparatus'19985,767,484'Image fixing heater and image fixing apparatus having same'19985,760,797'Ink jet recording head with adjustable temperature sensor and ink jet recording system having the same'19985,712,666'Recording apparatus'19985,638,097'Recording apparatus to which recording head is detachably mounted'19975,625,384'Ink jet recording apparatus and method using replaceable recording heads'19975,617,122'Recording apparatus and method for controlling recording head driving timing'19975,610,480'Control apparatus for copying machine or the like'19975,488,395'Liquid jet recording apparatus'19965,485,182'Liquid jet recording apparatus'19965,343,280'Image fixing apparatus'19945,300,997'Image fixing apparatus'19945,289,210'Image recording apparatus'19945,260,745'Image exposing and forming apparatus with original density detection'19935,184,178'Image recording apparatus having an interchangeable cartridge'19935,149,941'Image fixing apparatus with movable sheet member and detectors'19924,901,079'Analog-digital converter'19904,771,312'Image forming apparatus having a battery'19884,758,860'Image forming apparatus'19884,745,434'Copying apparatus having progressive control means'19884,684,239'Image forming apparatus with automatic regulation in response to image density'19874,645,982'Load control unit in an image forming apparatus'19874,624,548'Image density control device'19864,618,246'Image forming device'19864,573,788'Image forming device'19864,571,725'Image formation apparatus having a diagnosing function'19864,487,402'Vibration damper device'19844,470,009'Surface potentiometer'19844,420,247'Computer control means for an electrostatic recording apparatus'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–2016Patents assigned to CANON KK (56)· patent assignee history
1983–1990Based in Kawasaki, JP· patent location history
1984Patents assigned to KOMATSU ZENOA KK (1)· patent assignee history
1986–1999Based in Ichikawa, JP· patent location history
1987–2015Based in Yokohama, JP· patent location history
2007–2018Based in Tokyo, JP· patent location history
2014–2020Patents assigned to MAKITA CORP (9)· patent assignee history
2014Patents assigned to TAKAYANAGI YOSHIAKI (2)· patent assignee history
2014Patents assigned to KASAHARA TAKASHI (1)· patent assignee history
2014–2020Based in Anjo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CANON KK561983–2016
MAKITA CORP92014–2020
TAKAYANAGI YOSHIAKIself22014
KASAHARA TAKASHI12014
KOMATSU ZENOA KK11984
Locations
LocationPatentsSpan
Yokohama, JP411987–2015
Tokyo, JP72007–2018
Kawasaki, JP71983–1990
Ichikawa, JP41986–1999
Anjo, JP32014–2020