Inventor · disambiguated record
Masaaki Sumi
Also filed as: SUMI MASAAKI
28 granted patents·3 pending applications·92 citations·filing 1998–2023
93Inventor score
Top patents by PatentIndex Score
31 records- 0189US10210698B2Game machine pushbuttonOMRON TATEISI ELECTRONICS CO·Filed 2017·Granted Feb 19, 2019·11 cites·6 claims
- 0288US11069176B2Game machine pushbutton, illumination deviceOMRON TATEISI ELECTRONICS CO·Filed 2020·Granted Jul 20, 2021·3 cites·14 claims
- 0386US10957499B2Push-button for game machineOMRON TATEISI ELECTRONICS CO·Filed 2019·Granted Mar 23, 2021·3 cites·15 claims
- 0485US5997980AHollow polyester fibers and textile articles comprising sameTEIJIN LTD·Filed 1998·Granted Dec 7, 1999·51 cites·11 claims
- 0583US11792562B2HeadphonesOMRON TATEISI ELECTRONICS CO·Filed 2022·Granted Oct 17, 2023·1 cites·7 claims
- 0681US12400510B2Pushbutton switch, pushbutton switch unit, operating unit, and amusement machineOMRON TATEISI ELECTRONICS CO·Filed 2020·Granted Aug 26, 2025·1 cites·13 claims
- 0778US10043338B2Operation unit and game machineOMRON TATEISI ELECTRONICS CO·Filed 2014·Granted Aug 7, 2018·4 cites·5 claims
- 0874US6769682B2Device for reversing direction of motion of paper sheetOMRON TATEISI ELECTRONICS CO·Filed 2002·Granted Aug 3, 2004·14 cites·8 claims
- 0973US10783739B2Push-button for game machineOMRON TATEISI ELECTRONICS CO·Filed 2018·Granted Sep 22, 2020·1 cites·16 claims
- 1070US2023135839A1MaskOMRON TATEISI ELECTRONICS CO·Filed 2022·Application pending·0 cites
- 1168US10058780B2Operating apparatus, game machine, and control methodOMRON TATEISI ELECTRONICS CO·Filed 2017·Granted Aug 28, 2018·1 cites·10 claims
- 1266US12271024B2Illumination device and gaming machine equipped with sameOMRON TATEISI ELECTRONICS CO·Filed 2022·Granted Apr 8, 2025·0 cites·16 claims
- 1366US11373478B2Game machineOMRON TATEISI ELECTRONICS CO·Filed 2018·Granted Jun 28, 2022·1 cites·1 claims
- 1465US11874492B2Illumination deviceOMRON TATEISI ELECTRONICS CO·Filed 2022·Granted Jan 16, 2024·0 cites·15 claims
- 1561US12387550B2Pushbutton switch, operating unit, and amusement machineOMRON TATEISI ELECTRONICS CO·Filed 2020·Granted Aug 12, 2025·0 cites·14 claims
- 1661US9995478B2Switch unit and game machineOMRON TATEISI ELECTRONICS CO·Filed 2016·Granted Jun 12, 2018·1 cites·4 claims
- 1758US12236739B2Pushbutton switch, operating unit, and amusement machineOMRON TATEISI ELECTRONICS CO·Filed 2020·Granted Feb 25, 2025·0 cites·5 claims
- 1853US12333892B2Illumination device and gaming machine equipped with sameOMRON TATEISI ELECTRONICS CO·Filed 2023·Granted Jun 17, 2025·0 cites·16 claims
- 1952US12361781B2Gaming machine operation button, and control deck and gaming machine comprising sameOMRON TATEISI ELECTRONICS CO·Filed 2022·Granted Jul 15, 2025·0 cites·11 claims
- 2052US10698649B2Operation switch unit and game machineOMRON TATEISI ELECTRONICS CO·Filed 2018·Granted Jun 30, 2020·0 cites·20 claims
- 2151US12469357B2Illumination device and gaming machine equipped with sameOMRON TATEISI ELECTRONICS CO·Filed 2023·Granted Nov 11, 2025·0 cites·14 claims
- 2251US12462639B2Control deck and gaming machine equipped with sameOMRON TATEISI ELECTRONICS CO·Filed 2022·Granted Nov 4, 2025·0 cites·9 claims
- 2351US12112913B2Push button deviceOMRON TATEISI ELECTRONICS CO·Filed 2020·Granted Oct 8, 2024·0 cites·5 claims
- 2451US2024119808A1Presentation device and gaming machineOMRON TATEISI ELECTRONICS CO·Filed 2023·Application pending·0 cites
- 2550US10262581B2Operating apparatus, game machine, and control methodOMRON TATEISI ELECTRONICS CO·Filed 2017·Granted Apr 16, 2019·0 cites·10 claims
- 2648US9412223B2Operation unit and game machineOMRON TATEISI ELECTRONICS CO·Filed 2014·Granted Aug 9, 2016·0 cites·5 claims
- 2745US10258872B2Operating apparatus, game machine, and control methodOMRON TATEISI ELECTRONICS CO·Filed 2017·Granted Apr 16, 2019·0 cites·12 claims
- 2842US12165461B2Push button deviceOMRON TATEISI ELECTRONICS CO·Filed 2020·Granted Dec 10, 2024·0 cites·6 claims
- 2940US9899163B2Switch unit and game machineOMRON TATEISI ELECTRONICS CO·Filed 2016·Granted Feb 20, 2018·0 cites·16 claims
- 3037US9978545B2Switch unit and game machineOMRON TATEISI ELECTRONICS CO·Filed 2016·Granted May 22, 2018·0 cites·7 claims
- 3130US2003116004A1Hole puncherFiled 2002·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Masaaki Sumi files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →