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Inventor

Katsuyuki Yonezawa

Inventor
Kanagawa, JP

Overview

3→
Patents
1998–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

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

H03Hprimary
H03HImpedance networks, e.g. resonant circuits33%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling17%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding17%
F15BSystems acting by means of fluids in general17%
H03FAmplifiers17%
PatentTitleYear
11,110,560Rotary clamp20216,744,306'Filter circuit'20045,742,199'Filter circuit and electronic apparatus'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2004Patents assigned to SONY CORP (2)· patent assignee history
1998–2004Based in Kanagawa, JP· patent location history
2021Patents assigned to KOSMEK LTD (1)· patent assignee history
2021Based in Hyogo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SONY CORP21998–2004
KOSMEK LTD12021
Locations
LocationPatentsSpan
Kanagawa, JP21998–2004
Hyogo, JP12021