Inventor · disambiguated record
Tsuyoshi Narusawa
Also filed as: NARUSAWA TSUYOSHI
14 granted patents·2 pending applications·201 citations·filing 1995–2012
93Inventor score
Top patents by PatentIndex Score
16 records- 0193US6624369B2Keyboard device and method for manufacturing the sameALPS ELECTRIC CO LTD·Filed 2001·Granted Sep 23, 2003·56 cites·14 claims
- 0271US5967298AKeyboard deviceALPS ELECTRIC CO LTD·Filed 1997·Granted Oct 19, 1999·25 cites·2 claims
- 0371US5754167ACoordinate inputting device for a computer keyboardALPS ELECTRIC CO LTD·Filed 1995·Granted May 19, 1998·44 cites·6 claims
- 0466US6556186B2Keyboard input device with pointing device for controlling cursor position on graphic display and the likeALPS ELECTRIC CO LTD·Filed 2000·Granted Apr 29, 2003·13 cites·13 claims
- 0556US6689977B2Keyswitch having a keytop that is upwardly and downwardly movable and method of assembling the sameALPS ELECTRIC CO LTD·Filed 2001·Granted Feb 10, 2004·8 cites·9 claims
- 0655US6225586B1Thin keyboard apparatusALPS ELECTRIC CO LTD·Filed 1999·Granted May 1, 2001·14 cites·8 claims
- 0750US6597344B1Key switch disposed on keyboard input device and method of producing the sameALPS ELECTRIC CO LTD·Filed 2000·Granted Jul 22, 2003·6 cites·8 claims
- 0850US6483050B1Key switch with easily attachable key topALPS ELECTRIC CO LTD·Filed 2000·Granted Nov 19, 2002·6 cites·26 claims
- 0944US6909062B2Key-switch device corresponding to miniaturized notebook-size personal computer with reduced-thicknessALPS ELECTRIC CO LTD·Filed 2004·Granted Jun 21, 2005·3 cites·3 claims
- 1043US6777634B2Key-switch device corresponding to miniaturized notebook-size personal computer with reduced-thicknessALPS ELECTRIC CO LTD·Filed 2002·Granted Aug 17, 2004·3 cites·19 claims
- 1141US2013009866A1Input processing apparatusHIRANO SHINJI·Filed 2012·Application pending·0 cites
- 1235US6031189AKeyboard deviceALPS ELECTRIC CO LTD·Filed 1997·Granted Feb 29, 2000·4 cites·4 claims
- 1334US6087604AThin keyboardALPS ELECTRIC CO LTD·Filed 1999·Granted Jul 11, 2000·9 cites·4 claims
- 1432US6152627AKeyboard device having plurality of keyswitchesALPS ELECTRIC CO LTD·Filed 1997·Granted Nov 28, 2000·7 cites·7 claims
- 1528US6312176B2Keyboard apparatusALPS ELECTRIC CO LTD·Filed 1999·Granted Nov 6, 2001·3 cites·8 claims
- 1628US2001001628A1Thin keyboardFiled 1999·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →