Assignee
TOPRE CORP
JP·31 granted patents·8 pending applications·484 citations·filing 1981–2025
Top patents by PatentIndex Score
39 records- 0193US10325734B1Keyboard switchTOPRE CORP·Filed 2018·Granted Jun 18, 2019·11 cites·5 claims
- 0289US4659879AKey switchTOPRE CORP·Filed 1985·Granted Apr 21, 1987·39 cites·11 claims
- 0388US4406397ACentral air conditioning equipmentTOPRE CORP·Filed 1981·Granted Sep 27, 1983·76 cites·7 claims
- 0487US4584444AKeyboard switchTOPRE CORP·Filed 1984·Granted Apr 22, 1986·54 cites·16 claims
- 0584US9061341B2Hot-pressing device and method of manufacturing hot-pressed productTOPRE CORP·Filed 2013·Granted Jun 23, 2015·4 cites·10 claims
- 0682US4772874AKeyboard apparatusTOPRE CORP·Filed 1987·Granted Sep 20, 1988·39 cites·14 claims
- 0777US10265753B2Hot press productTOPRE CORP·Filed 2015·Granted Apr 23, 2019·2 cites·5 claims
- 0877US2026084202A1Method of manufacturing vehicle pillar and press forming dieTOPRE CORP·Filed 2025·Application pending·0 cites
- 0976US4553696AAir conditioning apparatusTOPRE CORP·Filed 1982·Granted Nov 19, 1985·38 cites·11 claims
- 1074US9328509B2Square pipe, frame structure, square pipe manufacturing method, and square pipe manufacturing apparatusTOPRE CORP·Filed 2015·Granted May 3, 2016·2 cites·1 claims
- 1174US4851626AKey switch deviceTOPRE CORP·Filed 1988·Granted Jul 25, 1989·27 cites·4 claims
- 1274US4800774APedal-load lightening apparatusTOPRE CORP·Filed 1987·Granted Jan 31, 1989·37 cites·7 claims
- 1373US4633900AConstant airflow control apparatus for air conditioningTOPRE CORP·Filed 1985·Granted Jan 6, 1987·41 cites·5 claims
- 1472US2026042137A1Method of manufacturing vehicle pillar and press forming dieTOPRE CORP·Filed 2025·Application pending·0 cites
- 1570US4449664AAir quantity regulating apparatus for air conditioningTOPRE CORP·Filed 1983·Granted May 22, 1984·32 cites·9 claims
- 1668US11951526B2Press-formed product manufacturing method and forming dieTOPRE CORP·Filed 2021·Granted Apr 9, 2024·0 cites·2 claims
- 1768US4907468APedal effort-reduction apparatusTOPRE CORP·Filed 1987·Granted Mar 13, 1990·29 cites·1 claims
- 1862US11471928B2Positioning device for hot stampingTOPRE CORP·Filed 2021·Granted Oct 18, 2022·0 cites·4 claims
- 1959US9017798B2Press-formed productTOPRE CORP·Filed 2013·Granted Apr 28, 2015·2 cites·9 claims
- 2057US9174260B2Hot press product and method of forming the sameTOPRE CORP·Filed 2013·Granted Nov 3, 2015·1 cites·3 claims
- 2152US4491061AAir conditioning systemTOPRE CORP·Filed 1983·Granted Jan 1, 1985·18 cites·7 claims
- 2252US2019262887A1Method for manufacturing tailored blank press formed productTOPRE CORP·Filed 2019·Application pending·0 cites
- 2350US12580567B2Key switch device and key switch control methodTOPRE CORP·Filed 2023·Granted Mar 17, 2026·0 cites·4 claims
- 2447US4482932AKeyboard switchTOPRE CORP·Filed 1981·Granted Nov 13, 1984·6 cites·11 claims
- 2546USD696577SSelf-piercing clinch nutTOPRE CORP·Filed 2013·Granted Dec 31, 2013·5 cites·1 claims
- 2646US2013312478A1Method of manufacturing hot pressed product and hot pressing apparatusTOPRE CORP·Filed 2013·Application pending·0 cites
- 2744US11097332B2Method for manufacturing hot pressed productTOPRE CORP·Filed 2018·Granted Aug 24, 2021·0 cites·14 claims
- 2844US10671183B2Keyboard deviceTOPRE CORP·Filed 2017·Granted Jun 2, 2020·0 cites·6 claims
- 2942US4807145AMethod and apparatus for measuring the shape, size, etc., of a rotary toolTOPRE CORP·Filed 1987·Granted Feb 21, 1989·12 cites·6 claims
- 3041US2025271946A1Input device and control method of input deviceTOPRE CORP·Filed 2025·Application pending·0 cites
- 3140US2024284573A1Keyboard device, computer system, and keyboard control methodTOPRE CORP·Filed 2024·Application pending·0 cites
- 3239US11621710B2Capacitance switchTOPRE CORP·Filed 2020·Granted Apr 4, 2023·0 cites·5 claims
- 3339US2013213109A1Press product forming methodTOPRE CORP·Filed 2012·Application pending·0 cites
- 3438US4878056AKey input circuitTOPRE CORP·Filed 1987·Granted Oct 31, 1989·7 cites·17 claims
- 3537US10684700B2Keyboard threshold change apparatus and keyboardTOPRE CORP·Filed 2017·Granted Jun 16, 2020·0 cites·4 claims
- 3636USD696578SSelf-piercing clinch nutTOPRE CORP·Filed 2013·Granted Dec 31, 2013·2 cites·1 claims
- 3720US9979392B2Capacitive keyboardTOPRE CORP·Filed 2015·Granted May 22, 2018·0 cites·5 claims
- 3818US10217578B2KeyboardTOPRE CORP·Filed 2016·Granted Feb 26, 2019·0 cites·10 claims
- 3912US2017338816A1Capacitive keyboardTOPRE CORP·Filed 2015·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →