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Inventor

Masao Iwata

Inventor
Yokosuka, JP

Overview

38→
Patents
1976–2019
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 38 as inventor

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

F02Pprimary
F02PIgnition, other than compression ignition, for internal-combustion engines13%
H02KDynamo-electric machines7%
F02NStarting of combustion engines6%
H01FMagnets6%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h106%
C22CAlloys5%
F02BInternal-combustion piston engines5%
H05KPrinted circuits5%
Y10TTechnical subjects covered by former us classification5%
F02DControlling combustion engines4%
PatentTitleYear
10,305,082Terminal-securing auxiliary member201910,205,255Battery terminal stopper and battery terminal unit20199,726,095'Engine driven working machine'20178,469,001'Work apparatus with internal combustion engine'20138,161,943'Non-contact ignition control device of internal combustion engine'20127,913,547'Engine rotating meter'20117,726,181'Ignition timing measuring and display device of internal combustion engine'20106,873,073'Magneto rotor'20056,802,284'Fuel injection device and air-fuel mixture generating device provided with fuel injection device'20046,584,957'Contactless ignition system for internal combustion engine'20036,574,085'Power supply apparatus for electrostatic charging and method for same'20036,467,147'Magneto electric generator rotor and an implement for removing this rotor'20026,354,522'Electrostatic sprayer'20026,303,989'Integrated circuit device on metal board with CPU power converter'20016,023,828'Magneto electric generator rotor and an implement for removing this rotor'20005,903,079'Rotor of rotating equipment'19995,811,908'Magneto electric generator rotor and an implement for removing this rotor'19985,800,728'Permanent magnetic material made of iron-rare earth metal alloy'19985,793,649'Apparatus for measuring the operation of vehicular engines'19985,742,097'Multilevel semiconductor integrated circuit device'19985,715,527'Mobile communication device having an output power sensor succeeding a transmission filter'19985,652,462'Multilevel semiconductor integrated circuit device'19975,528,458'Integrated circuit device and its manufacturing method'19965,525,954'Stripline resonator'19965,525,942'LC-type dielectric filter and duplexer'19965,490,041'Semiconductor integrated circuit module and a semiconductor integrated circuit device stacking the same'19965,240,428'Working machine safety device'19934,989,885'Magnetic fluid retainer, and shaft sealer employing same'19914,722,206'Lock system for hinged window-mounted back door'19884,720,622'Wall-mounted type cooking apparatus'19884,565,180'Contactless ignition device for internal combustion engines'19864,515,140'Contactless ignition device for internal combustion engines'19854,385,617'Over-rotation preventing device for internal combustion engines'19834,305,764'Method of producing Fe/Cr/Co permanent magnet alloy'19814,194,932'Fe/Cr/Co Permanent magnetic alloys and method of production thereof'19804,093,477'Anisotropic permanent magnet alloy and a process for the production thereof'19783,989,556'Semihard magnetic alloy and a process for the production thereof'19763,982,972'Semihard magnetic alloy and a process for the production thereof'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1998Patents assigned to HITACHI METALS LTD (7)· patent assignee history
1976–1991Based in Chichibu, JP· patent location history
1983–2012Patents assigned to OPPAMA KOGYO KK (16)· patent assignee history
1983–2017Based in Yokosuka, JP· patent location history
1985–2004Based in Kanagawa, JP· patent location history
1993–2004Patents assigned to KIORITZ CORP (5)· patent assignee history
1996–2001Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (5)· patent assignee history
1996–1998Patents assigned to OKI ELECTRIC IND CO LTD (3)· patent assignee history
1996–2001Based in Hirakata, JP· patent location history
1996–1998Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
OPPAMA KOGYO KK161983–2012
HITACHI METALS LTD71976–1998
KIORITZ CORP51993–2004
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD51996–2001
OKI ELECTRIC IND CO LTD31996–1998
Locations
LocationPatentsSpan
Yokosuka, JP171983–2017
Chichibu, JP61976–1991
Hirakata, JP51996–2001
Tokyo, JP31996–1998
Kanagawa, JP21985–2004