Inventor · disambiguated record
Tohru Ohsaka
Also filed as: OHSAKA TOHRU
13 granted patents·333 citations·filing 1991–2013
93Inventor score
Files withCANON KK13
Top patents by PatentIndex Score
13 records- 0194US5302798AMethod of forming a hole with a laser and an apparatus for forming a hole with a laserCANON KK·Filed 1992·Granted Apr 12, 1994·103 cites·3 claims
- 0289US6800814B2Multi-layered printed wiring boardCANON KK·Filed 2002·Granted Oct 5, 2004·42 cites·15 claims
- 0388US7594105B2Multilayer print circuit boardCANON KK·Filed 2006·Granted Sep 22, 2009·21 cites·9 claims
- 0488US7349224B2Semiconductor device and printed circuit boardCANON KK·Filed 2005·Granted Mar 25, 2008·15 cites·3 claims
- 0586US7277298B2Multi-terminal device and printed wiring boardCANON KK·Filed 2005·Granted Oct 2, 2007·15 cites·10 claims
- 0681US7851900B2Stacked semiconductor packageCANON KK·Filed 2006·Granted Dec 14, 2010·9 cites·11 claims
- 0780US5973929APrinted circuit board having an embedded capacitorCANON KK·Filed 1997·Granted Oct 26, 1999·64 cites·23 claims
- 0878US7839652B2Semiconductor device and printed circuit boardCANON KK·Filed 2008·Granted Nov 23, 2010·6 cites·7 claims
- 0976US5215593AMethod of introducing liquid into small-diameter holeCANON KK·Filed 1991·Granted Jun 1, 1993·41 cites·5 claims
- 1072US9084364B2Printed circuit board and printed wiring boardCANON KK·Filed 2013·Granted Jul 14, 2015·4 cites·21 claims
- 1169US7495928B2Semiconductor device and printed circuit boardCANON KK·Filed 2007·Granted Feb 24, 2009·3 cites·1 claims
- 1249US7199308B2Multi-layered printed wiring boardCANON KK·Filed 2004·Granted Apr 3, 2007·2 cites·10 claims
- 1332US6335866B1Printed wiring board unit for use with electronic apparatusCANON KK·Filed 1998·Granted Jan 1, 2002·8 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when Tohru Ohsaka 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 →