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Inventor

Akio Murata

Inventor
Kawasaki, JP

Overview

39→
Patents
1984–2019
Patent span
Physics
Primary field (CPC G)

Patents· 39 as inventor

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

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer27%
G06KGraphical data reading15%
G06FElectric digital data processing12%
G08BSignalling systems, e.g. personal calling systems7%
Y10TTechnical subjects covered by former us classification6%
H01JElectric discharge tubes or discharge lamps4%
F25BRefrigeration machines, plants or systems3%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application3%
G01RMeasuring electric variables3%
H04LTransmission of digital information, e.g. telegraphic communication3%
PatentTitleYear
10,508,871Refrigerant distributor, and heat pump device having the refrigerant distributor201910,175,009Method for manufacturing refrigerant distributor, refrigerant distributor manufacturing apparatus, refrigerant distributor, heat exchanger, and air-conditioning device20197,916,329'Print job management device, print job management method and recording medium'20117,183,767'Magnetic sensing element, magnetic sensor, and its manufacturing method'20077,145,331'Magnetic sensor having a closed magnetic path formed by soft magnetic films'20067,047,088'Management system for devices connecting with network'20067,016,740'Management system for devices connecting with network'20067,012,928'Data transmission method by polling and terminal apparatus for use in the method'20066,795,263'Magnetic head'2004RE038594'Magnetic sensing apparatus having a central core with wire therethrough'20046,590,740'Shielded magnetic head and magnetic reproducing apparatus'20036,538,843'Magnetic head'20036,349,102'Data transmission method by polling and terminal apparatus for use in the method'20026,255,770'Corona resistant saddle-shaped deflection coil'20016,193,159'Portable optical reading apparatus having a trigger key for starting reading operation thereof'20016,185,073'Rotary magnetic head having head base which is bent along thermal plastic deformation line'20016,163,268'Information processing system using portable terminal unit and data communication adapter therefor'20006,028,748'Magnetic head apparatus including a quarter wavelength transmission line'20005,983,290'Information processing system using portable terminal unit and data communication adapter therefor'19995,978,186'Magnetic head and reproducing apparatus with head having central core with winding thereabout and wire therethrough'19995,960,208'Data communication adapter for selectively supplying power to a communication control circuit or a portable terminal unit'19995,854,737'Information processing system using portable terminal unit and data communication adapter having biased connector'19985,835,312'Magnetic head for use with a recording medium'19985,828,278'Deflection system'19985,670,770'Portable terminal apparatus'19975,661,634'Information processing system using portable terminal unit and data communication adapter therefor'19975,537,276'Magnetic head installed on a rotary drum and method for adjusting the head height'19965,347,415'Head height adjustment method including a synchronized rotating laser beam optical axis'19945,341,256'Rotary head adjuster'19945,303,108'Magnetic head device'19945,256,850'Azimuth adjusting method for magnetic head'19935,225,953'Magnetic thin film head of a single magnetic pole for perpendicular recording and reproduction'19935,175,869'Automatic data transmission system'19924,953,051'Composite magnetic head'19904,943,882'Thin-film, perpendicular magnetic recording and reproducing head'19904,855,854'Thin-film magnetic head'19894,604,547'Deflection system for a two electron beam cathode ray tube'19864,517,771'Elongated annular vibratory barrel finishing apparatus having unbalanced weights controlled by an electronic processor'19854,424,061'Color fastness of dyed cotton textiles to chlorinated water and process for improving the color fastness of dyed cotton textiles to chlorinated water'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–2001Patents assigned to SONY CORP (3)· patent assignee history
1986–2019Based in Tokyo, JP· patent location history
1989–1993Patents assigned to SUMITOMO SPEC METALS (3)· patent assignee history
1992–2006Patents assigned to FUJITSU LTD (10)· patent assignee history
1993–2007Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (15)· patent assignee history
1993–2001Based in Ibaraki, JP· patent location history
1993–2004Based in Suita, JP· patent location history
1994–2000Based in Takatsuki, JP· patent location history
1997–2006Based in Kawasaki, JP· patent location history
2006–2011Patents assigned to SEIKO EPSON CORP (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD151993–2007
FUJITSU LTD101992–2006
SEIKO EPSON CORP32006–2011
SONY CORP31986–2001
SUMITOMO SPEC METALS31989–1993
Locations
LocationPatentsSpan
Kawasaki, JP91997–2006
Ibaraki, JP51993–2001
Suita, JP41993–2004
Takatsuki, JP41994–2000
Tokyo, JP21986–2019