Inventor · disambiguated record
Hitoshi Matsuzawa
Also filed as: MATSUZAWA HITOSHI
12 granted patents·393 citations·filing 1996–2002
93Inventor score
Top patents by PatentIndex Score
12 records- 0187US6522753B1Active noise control method and receiver deviceFUJITSU LTD·Filed 1999·Granted Feb 18, 2003·71 cites·15 claims
- 0282US5831770AProjection optical system and exposure apparatus provided therewithNIKON CORP·Filed 1997·Granted Nov 3, 1998·50 cites·79 claims
- 0378US5781278AProjection optical system and exposure apparatus with the sameNIKON CORP·Filed 1997·Granted Jul 14, 1998·47 cites·67 claims
- 0476US5835285AProjection optical system and exposure apparatus using the sameNIKON CORP·Filed 1997·Granted Nov 10, 1998·42 cites·57 claims
- 0574US6104544AExposure apparatusNIKON CORP·Filed 1997·Granted Aug 15, 2000·37 cites·84 claims
- 0668USRE37846EProjection optical system and exposure apparatus using the sameNIPPON KOGAKU KK·Filed 2000·Granted Sep 17, 2002·9 cites·90 claims
- 0766US6084723AExposure apparatusNIKON CORP·Filed 1996·Granted Jul 4, 2000·31 cites·35 claims
- 0861US6704415B1Echo cancelerFUJITSU LTD·Filed 1999·Granted Mar 9, 2004·35 cites·19 claims
- 0960US7203326B2Noise suppressing apparatusFUJITSU LTD·Filed 2002·Granted Apr 10, 2007·8 cites·4 claims
- 1058US6078881ASpeech encoding and decoding method and speech encoding and decoding apparatusFUJITSU LTD·Filed 1998·Granted Jun 20, 2000·37 cites·8 claims
- 1153US5909662ASpeech processing coder, decoder and command recognizerFUJITSU LTD·Filed 1996·Granted Jun 1, 1999·23 cites·29 claims
- 1251USRE38465EExposure apparatusNIPPON KOGAKU KK·Filed 2001·Granted Mar 16, 2004·3 cites·190 claims
Join the waitlist — get patent alerts
Get an alert when Hitoshi Matsuzawa 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 →