LexDanaLexDanabeta
Inventor

Kazuhiko Hara

Inventor
Nagano, JP

Overview

75→
Patents
1986–2020
Patent span
Performing operations
Primary field (CPC B)

Patents· 75 as inventor

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

B41Jprimary
B41JTypewriters41%
G06FElectric digital data processing16%
C09DCoating compositions, e.g. paints, varnishes or lacquers9%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light5%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments3%
G01NInvestigating or analysing materials by determining their chemical or physical properties3%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds2%
C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties2%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%
Y10TTechnical subjects covered by former us classification2%
PatentTitleYear
10,639,901Maintenance method of liquid ejecting apparatus202010,562,309Liquid ejecting apparatus and maintenance method of liquid ejecting apparatus202010,363,743Liquid ejecting head having nozzle with electrostatic propensity201910,005,284Liquid ejecting apparatus and cleaning device20189,925,779'Liquid ejecting apparatus'20189,809,029'Liquid ejecting apparatus and cleaning device'20179,796,184'Liquid ejecting apparatus'20179,469,120'Dummy head and liquid ejecting apparatus'20169,174,451'Cleaning device for liquid ejecting head, and liquid ejecting apparatus with the same'20158,759,417'Water-based ink, water-based ink set, and process for producing dispersion'20148,353,586'Ink jet printer, ink jet recording method, and recorded matter'20138,219,783'SIMD type microprocessor having processing elements that have plural determining units'20128,128,215'Ink jet printer, ink jet recording method, and recorded matter'20128,069,274'System and method for serial data communications between host and communications devices, and communications device employed in the system and method'20118,009,005'Reactor apparatus for a railway vehicle'20117,886,581'Oil-based ink composition for ink jet recording and method for inspecting it'20117,384,991'Aqueous ink'20087,191,310'Parallel processor and image processing apparatus adapted for nonlinear processing through selection via processor element numbers'20077,086,723'Ink cartridge for ink-jet recorder and method of manufacturing same'20067,001,935'Ink for ink jet printing process and printed matter obtained using the same'20066,932,456'Flushing position controller incorporated in ink-jet recording apparatus and flushing method used for the same'20056,929,359'Ink cartridge for ink-jet recorder and method of manufacturing same'20056,916,862'Process for the preparation of pigment dispersion, pigment dispersion obtained by the same, ink jet recording ink comprising the same, and recording method and recorded material using the same'20056,913,336'Ink jet recording apparatus and ink end judging method executed in the same'20056,911,083'Method for producing powders made of gallium nitride and apparatus for producing the same'20056,886,930'Ink cartridge and ink jet record apparatus using the ink cartridge'20056,854,834'Ink cartridge for ink-jet recorder and method of manufacturing same'20056,785,800'Single instruction stream multiple data stream processor'20046,779,860'Ink-jet recording apparatus'20046,742,878'Ink cartridge and ink jet record apparatus using the ink cartridge'20046,723,784'Coating liquid, and image recording method and recording using same'20046,705,712'Ink cartridge, ink jet recording device using the same, and method for controlling the cleaning of a recording head of the ink jet recording device'20046,619,783'Flushing position controller incorporated in ink-jet recording apparatus and flushing method used for the same'20036,599,356'Method for manufacturing pigment dispersed liquid, and pigment dispersed liquid, and ink for ink-jet printer recording using said pigment dispersed liquid'20036,584,687'Method of manufacturing an ink-jet recording head using a thermally fusible film that does not close communication holes'20036,540,322'Ink jet recording apparatus and ink suction method of the recording head'20036,530,634'Ink jet recording apparatus'20036,524,383'Method for manufacturing pigment dispersion, pigment dispersion obtained by this method, and ink jet recording ink using same'20036,481,826'Ink jet recording apparatus, method of discharging ink from capping unit incorporated in the apparatus, and ink composition used with the apparatus'20026,406,123'Capping unit for ink jet recording head incorporated in ink jet recording apparatus and method of manufacturing the same'20026,364,449'Ink jet recording apparatus and cleaning control method for the same'20026,312,115'Ink cartridge for ink jet recorder and method of manufacturing same'20016,312,092'Ink jet recording apparatus and ink suction method of the recording head'20016,282,913'Water vaporization type cooling apparatus for heat-generating unit'20016,266,756'Central processing unit compatible with bank register CPU'20016,234,616'Mechanism for opening or closing ink supply passage in ink-jet printer'20016,170,941'Ink cartridge for ink-jet recorder'20016,158,840'Ink jet recording apparatus'20006,105,082'Data processor used in a data transfer system which includes a detection circuit for detecting whether processor uses bus in a forthcoming cycle'20006,044,455'Central processing unit adapted for pipeline process'20005,938,758'Microprocessor having function of prefetching instruction'19995,872,583'Using fusible films having windows supplied with adhesive and gap material'19995,864,691'Central processing unit with a selector that bypasses circuits where processing is not required'19995,805,181'Storage case for storing an ink jet printing unit, the ink jet printing unit including an ink jet recording head and cartridge'19985,768,554'Central processing unit'19985,748,214'Ink jet recording head'19985,696,957'Integrated circuit comprising a central processing unit for executing a plurality of programs'19975,630,158'Central processing unit including inhibited branch area'19975,606,709'Register group circuit for data processing system'19975,594,890'Emulation system for emulating CPU core, CPU core with provision for emulation and ASIC having the CPU core'19975,452,317'Metal vapor laser apparatus'19955,381,693'Ultrasonic imaging apparatus with synthesized focus and setting range markings'19955,301,552'Ultrasonic apparatus'19945,255,019'Ink near-end detecting device'19935,161,228'System with selectively exclusionary enablement for plural indirect address type interrupt control circuit'19925,157,420'Ink jet recording head having reduced manufacturing steps'19925,150,375'Substance vaporizing apparatus'19925,148,318'Optical pulse waveform shaper'19925,070,346'Ink near-end detecting device'19914,975,924'Metallic vapor laser apparatus'19904,953,405'Ultrasonic measuring apparatus for measuring a predetermined boundary surface inside an object'19904,850,709'Fabri-perot spectroscopy method and apparatus utilizing the same'19894,815,091'Metal vapor laser'19894,787,749'Method and apparatus for measuring the thickness of a thin film using the spectral reflection factor of the film'19884,568,207'Magnetic actuator mechanism'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–1995Patents assigned to CANON KK (5)· patent assignee history
1988–2005Based in Yokohama, JP· patent location history
1989–2011Patents assigned to MITSUBISHI ELECTRIC CORP (7)· patent assignee history
1990–2012Based in Hyogo, JP· patent location history
1991–2020Patents assigned to SEIKO EPSON CORP (45)· patent assignee history
1991–2020Based in Nagano, JP· patent location history
1992–2007Patents assigned to RICOH KK (13)· patent assignee history
1992–2014Patents assigned to HARA KAZUHIKO (6)· patent assignee history
1997–2011Based in Sanda, JP· patent location history
2015–2020Based in Shiojiri, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SEIKO EPSON CORP451991–2020
RICOH KK131992–2007
MITSUBISHI ELECTRIC CORP71989–2011
HARA KAZUHIKOself61992–2014
CANON KK51988–1995
Locations
LocationPatentsSpan
Nagano, JP371991–2020
Hyogo, JP91990–2012
Shiojiri, JP82015–2020
Sanda, JP61997–2011
Yokohama, JP51988–2005