Inventor · disambiguated record
Kiyoshi Yamakawa
Also filed as: YAMAKAWA KIYOSHI
17 granted patents·4 pending applications·213 citations·filing 1986–2023
94Inventor score
Top patents by PatentIndex Score
21 records- 0190US5274521APlanar thin film magnetic headSONY CORP·Filed 1991·Granted Dec 28, 1993·52 cites·11 claims
- 0284US7365943B2Thin film magnetic head and method for manufacturing the sameJAPAN SCIENCE & TECH AGENCY·Filed 2007·Granted Apr 29, 2008·8 cites·9 claims
- 0379US4701579AData entry keyboardBROTHER IND LTD·Filed 1986·Granted Oct 20, 1987·26 cites·4 claims
- 0478US4862166ACombination keyboard including plural stroke keys and plural touch keysBROTHER IND LTD·Filed 1987·Granted Aug 29, 1989·23 cites·8 claims
- 0574US5007751APrinter having carriage zeroing deviceBROTHER IND LTD·Filed 1988·Granted Apr 16, 1991·22 cites·16 claims
- 0662US11585795B2Optical detection type chemical sensorTIANMA JAPAN LTD·Filed 2021·Granted Feb 21, 2023·0 cites·11 claims
- 0761US2023251184A1Sensor system and method of detecting target substanceTIANMA JAPAN LTD·Filed 2023·Application pending·0 cites
- 0857US4848876AElectronic control circuit for preventing abnormal operation of a slave control circuitBROTHER IND LTD·Filed 1988·Granted Jul 18, 1989·23 cites·8 claims
- 0948US4954956AData processing apparatus having function of providing helpful information after excessive time lapse from last input operationBROTHER IND LTD·Filed 1987·Granted Sep 4, 1990·18 cites·18 claims
- 1047US4749289APrinting device for attribute printingBROTHER IND LTD·Filed 1987·Granted Jun 7, 1988·15 cites·10 claims
- 1143US2005064244A1High saturation flux density soft magnetic materialJAPAN SCIENCE & TECH AGENCY·Filed 2004·Application pending·0 cites
- 1242US5402271AVideo tape recorder monitors recording errors and rerecords video signals when errors are detectedSONY CORP·Filed 1993·Granted Mar 28, 1995·5 cites·4 claims
- 1340US4863296AInformation processing apparatusBROTHER IND LTD·Filed 1987·Granted Sep 5, 1989·5 cites·14 claims
- 1439US2004166369A1High saturation flux density soft magnetic filmAKITA PREFECTURE·Filed 2004·Application pending·0 cites
- 1538US4834566ATypewriter having means for interruption of automatic erasing operation, and/or automatic suspension thereof at each space between successive wordsBROTHER IND LTD·Filed 1986·Granted May 30, 1989·3 cites·12 claims
- 1637US4714361AStepper motor homing method and systemBROTHER IND LTD·Filed 1987·Granted Dec 22, 1987·3 cites·12 claims
- 1736US8944153B2Fin of heat exchanger, heat exchanger, and air conditioning apparatusKAZUSA TAKUYA·Filed 2012·Granted Feb 3, 2015·0 cites·12 claims
- 1836US2005111138A1Thin-film magnetic head and its manufacturing methodFiled 2004·Application pending·0 cites
- 1934US5065358AText processing apparatus for adjusting pagination to accommodate a second text field on a pageBROTHER IND LTD·Filed 1988·Granted Nov 12, 1991·6 cites·4 claims
- 2033US4804281APrinting apparatus with a type-wheelBROTHER IND LTD·Filed 1988·Granted Feb 14, 1989·2 cites·9 claims
- 2132US5343334AVideo tape that records, plays back, and rerecords video signals to overcome dropoutsSONY CORP·Filed 1991·Granted Aug 30, 1994·2 cites·2 claims
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