LexDanaLexDanabeta
Inventor

Naoto Kawamura

Inventor
Corvallis, OR, US

Overview

122→
Patents
1977–2013
Patent span
Performing operations
Primary field (CPC B)

Patents· 122 as inventor

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

B41Jprimary
B41JTypewriters35%
H04NPictorial communication, e.g. television27%
G06TImage data processing or generation, in general10%
Y10TTechnical subjects covered by former us classification10%
G02BOptical elements, systems or apparatus8%
F16KValves2%
G06FElectric digital data processing2%
G06KGraphical data reading2%
G01DMeasuring not specially adapted for a specific variable1%
G03GElectrography1%
PatentTitleYear
8,441,688'Image processing apparatus and method thereof'20138,390,891'Image processing apparatus and method for quantizing pixel of interest by error diffusion method'20138,279,489'Image processing apparatus and control method thereof for converting multilevel image data to binary data using an error diffusion method'20128,169,664'Image processing apparatus and method for quantizing pixel of interest by error diffusion method'20128,149,463'Information processing apparatus, image processing apparatus and method thereof, which create and use a halftone screen'20127,478,476'Methods of fabricating fit firing chambers of different drop wights on a single printhead'20097,467,862'Interconnect circuit'20087,204,933'Method of forming pillars in a fully integrated thermal inkjet printhead'20077,137,690'Interconnect circuit'20067,111,929'Magnetically-actuated fluid control valve'20067,101,029'Interconnect circuit'20067,097,271'Printhead calibration'20067,083,267'Slotted substrates and methods and systems for forming same'20067,056,444'Method of forming pillars in a fully integrated thermal inkjet printhead'20067,032,994'Interconnect circuit'20066,997,538'Inkjet printing with air current disruption'20066,966,112'Methods of fabricating FIT firing chambers of different drop weights on a single printhead'20056,962,406'Fluid ejection device and method of manufacture'20056,918,657'Fully integrated thermal inkjet printhead having etched back PSG layer'20056,911,155'Methods and systems for forming slots in a substrate'20056,905,619'Method of forming pillars in a fully integrated thermal inkjet printhead'20056,902,259'Direct imaging polymer fluid jet orifice'20056,890,068'Ink containment system for an ink-jet pen'20056,886,905'Inkjet printing with air movement system'20056,783,689'Method of forming pillars in a fully integrated thermal inkjet printhead'20046,776,915'Method of manufacturing a fluid ejection device with a fluid channel therethrough'20046,764,605'Particle tolerant architecture for feed holes and method of manufacturing'20046,761,439'Magnetically-actuated fluid control valve'20046,718,632'Method of making a fluid-jet ejection device'20046,719,398'Inkjet printing with air movement system'20046,692,111'Electrical interconnect for an inkjet die'20046,660,175'Method of forming pillars in a fully integrated thermal inkjet printhead'20036,648,437'Fluid ejection device and method of fluid ejection'20036,640,402'Method of manufacturing an ink actuator'20036,641,744'Method of forming pillars in a fully integrated thermal inkjet printhead'20036,600,828'Image processing method and apparatus, and storage medium therefor'20036,582,064'Fluid ejection device having an integrated filter and method of manufacture'20036,543,884'Fully integrated thermal inkjet printhead having etched back PSG layer'20036,540,325'Printer printhead'20036,520,627'Direct imaging polymer fluid jet orifice'20036,513,896'Methods of fabricating fit firing chambers of different drop weights on a single printhead'20036,481,832'Fluid-jet ejection device'20026,474,772'Method of determining thermal turn on energy'20026,477,281'Image processing system having multiple processors for performing parallel image data processing'20026,454,955'Electrical interconnect for an inkjet die'20026,447,102'Direct imaging polymer fluid jet orifice'20026,365,058'Method of manufacturing a fluid ejection device with a fluid channel therethrough'20026,336,714'Fully integrated thermal inkjet printhead having thin film layer shelf'20026,325,354'Magnetically-actuated fluid control valve'20016,322,201'Printhead with a fluid channel therethrough'20016,310,639'Printer printhead'20016,309,054'Pillars in a printhead'20016,305,790'Fully integrated thermal inkjet printhead having multiple ink feed holes per nozzle'20016,162,589'Direct imaging polymer fluid jet orifice'20006,158,846'Forming refill for monolithic inkjet printhead'20006,137,443'Single-side fabrication process for forming inkjet monolithic printing element array on a substrate'20006,126,276'Fluid jet printhead with integrated heat-sink'20006,126,273'Inkjet printer printhead which eliminates unpredictable ink nucleation variations'20006,065,823'Heat spreader for ink-jet printhead'20006,062,681'Bubble valve and bubble valve-based pressure regulator'20006,019,907'Forming refill for monolithic inkjet printhead'20005,917,947'Image processing method and apparatus permitting use of PDL in compression memory'19995,861,892'Image processing apparatus using compressed-data processing'19995,812,165'Leak resistant ink-jet pen'19985,812,146'Image processing apparatus using compressed data processing'19985,714,985'Image processing system capable of high-speed and high-resolution image synthesis'19985,712,929'Image processing apparatus'19985,692,210'Image processing apparatus having parallel processors for communicating and performing positional control over plural areas of image data in accordance with designated position instruction'19975,680,486'Image processing apparatus'19975,671,001'Leak resistant ink containment for a printer'19975,666,444'Image processing apparatus'19975,638,464'Image processing apparatus'19975,513,280'Discrimination of an edge portion of an image from a screen dot portion in an image processing system'19965,485,557'Image processing apparatus'19965,293,481'Data parallel processing apparatus'19945,271,072'Image reduction of binary images using filtering processing'19935,251,267'Image recording apparatus for processing image data based on characteristics of image data'19935,231,677'Image processing method and apparatus'19935,222,159'Image processing method and apparatus for extracting a portion of image data'19935,162,923'Method and apparatus for encoding frequency components of image information'19925,159,468'Image reduction system'19925,060,280'Masking control for image processing systems'19915,029,227'Image processing apparatus'19915,001,768'Image reading apparatus'19914,926,268'Image processing apparatus which converts m-bit image data to n-bit (n>m) image data'19904,918,541'Image processing method and apparatus'19904,903,123'Image processing apparatus using inclined line screens to reduce Moire'19904,870,483'Color image sensor including a plurality of photocells and a plurality of colored filters provided on the plurality of photocells'19894,864,326'Dual beam recorder'19894,853,752'Image processing method'19894,850,028'Image processing method and apparatus therefor'19894,805,013'Image data conversion system'19894,783,837'Image processing apparatus'19884,774,566'Color image processing apparatus for processing a serial color signal comprising plural color component signals into identical phase parallel signals'19884,752,822'Color halftone image processing apparatus producing various screen angles and having an adaptive color image data conversion look-up table and a small-capacity masking memory'19884,719,490'Color image processing apparatus'19884,713,684'Image processing apparatus for discriminating and processing different formats of color image signals'19874,674,861'Image processing apparatus'19874,660,077'Color image forming apparatus'19874,595,956'Image processing apparatus'19864,591,903'Recording apparatus'19864,553,036'Information detecting apparatus'19854,553,173'Image processing apparatus'19854,507,685'Image recording device'19854,491,875'Apparatus and method for tonal image processing'19854,467,195'Information detecting apparatus'19844,415,920'Image signal processing unit'19834,414,581'Image signal processing method and apparatus therefor'19834,323,297'Image forming optical system using a semiconductor laser'19824,307,408'Recording apparatus using coherent light'19814,268,871'Scanning optical system for formation of a half tone image'19814,268,870'Recording apparatus for reading information from an original'19814,253,735'Image forming optical system for semiconductor laser'19814,229,750'Information output unit'19804,180,307'Two-dimensional scanning apparatus with constant speed scan'19794,176,907'Scanning device'19794,159,865'Zoom lens system'19794,153,339'Zoom lens'19794,130,339'Scanning optical system including optical system for detecting an information beam'19784,099,846'Variable magnification lens system'19784,046,459'Retrofocus wide angle objective lens system'19774,025,170'Retro-focus type wide angle objective lens'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–2013Patents assigned to CANON KK (66)· patent assignee history
1977–1998Based in Inagi, JP· patent location history
1987–2002Based in Yokohama, JP· patent location history
1992–1993Patents assigned to KOKUSAI DENSHIN DENWA CO LTD (2)· patent assignee history
1992–2013Based in Kawasaki, JP· patent location history
1997–2003Patents assigned to HEWLETT PACKARD CO (25)· patent assignee history
1997–2009Based in Corvallis, OR, US· patent location history
1997Based in Tokyo, JP· patent location history
2003–2009Patents assigned to HEWLETT PACKARD DEVELOPMENT CO (31)· patent assignee history
2012–2013Patents assigned to KAWAMURA NAOTO (5)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CANON KK661977–2013
HEWLETT PACKARD DEVELOPMENT CO312003–2009
HEWLETT PACKARD CO251997–2003
KAWAMURA NAOTOself52012–2013
KOKUSAI DENSHIN DENWA CO LTD21992–1993
Locations
LocationPatentsSpan
Corvallis, OR, US561997–2009
Yokohama, JP281987–2002
Inagi, JP241977–1998
Kawasaki, JP111992–2013
Tokyo, JP11997