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Inventor

Kazuhiko Ozawa

Inventor
Kanagawa, JP

Overview

14→
Patents
1988–2013
Patent span
Physics
Primary field (CPC G)

Patents· 14 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G10Lprimary
G10LSpeech analysis techniques or speech synthesis17%
G11BInformation storage based on relative movement between record carrier and transducer14%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers14%
H04NPictorial communication, e.g. television9%
B05DProcesses for applying fluent materials to surfaces, in general6%
C23CCoating metallic material6%
H03HImpedance networks, e.g. resonant circuits6%
Y10TTechnical subjects covered by former us classification6%
B22CFoundry moulding3%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds3%
PatentTitleYear
8,547,416'Signal processing apparatus, signal processing method, program, and recording medium for enhancing voice'20138,411,165'Microphone apparatus, reproducing apparatus, and image taking apparatus'20138,331,583'Noise reducing apparatus and noise reducing method'20128,320,583'Noise reducing device and noise determining method'20128,150,061'Sound generating method, sound generating apparatus, sound reproducing method, and sound reproducing apparatus'20128,036,398'Circuit and apparatus having a delay unit for reducing periodic noise'20117,711,557'Audio signal noise reduction device and method'20107,697,699'Method of and apparatus for reducing noise'20107,436,968'Adaptive noise reduction method and device'20087,174,023'Automatic wind noise reduction circuit and automatic wind noise reduction method'20075,805,469'Digital audio signal processing apparatus and method for error concealment'19985,506,620'Recording/reproducing apparatus for providing indications of abnormal states'19964,970,126'Highly corrosion-resistant, multi-layer coated steel sheets'19904,775,600'Highly corrosion-resistant surface-treated steel plate'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–1990Patents assigned to KANSAI PAINT CO LTD (2)· patent assignee history
1988–1990Patents assigned to NIPPON KOKAN KK (2)· patent assignee history
1988–2013Based in Kanagawa, JP· patent location history
1990Based in Hiratsuka, JP· patent location history
1996–2013Patents assigned to SONY CORP (12)· patent assignee history
2012–2013Patents assigned to OZAWA KAZUHIKO (5)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SONY CORP121996–2013
OZAWA KAZUHIKOself52012–2013
KANSAI PAINT CO LTD21988–1990
NIPPON KOKAN KK21988–1990
Locations
LocationPatentsSpan
Kanagawa, JP131988–2013
Hiratsuka, JP11990