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Inventor

Hiromi Takeda

Inventor
Kanagawa, JP

Overview

4→
Patents
1991–2013
Patent span
Physics
Primary field (CPC G)

Patents· 4 as inventor

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

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer25%
B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers13%
G02BOptical elements, systems or apparatus13%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them13%
H04NPictorial communication, e.g. television13%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
Y10TTechnical subjects covered by former us classification13%
PatentTitleYear
8,384,821'Apparatus, method, and program product for autofocus including a contrast obtaining unit that obtains a focus contrast and a control unit that controls a focus lens according to the focus contrast'20136,590,741'Magnetic head having grooves to enhance contact with magnetic recording media and magnetic recording/reproducing apparatus'20036,150,044'Magnetic head'20005,048,687'Heat-shrunk protective packaging for multiple units'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991Patents assigned to WEYERHAEUSER CO (1)· patent assignee history
1991Based in Musashino, JP· patent location history
2000–2003Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (2)· patent assignee history
2000Based in Kyoto, JP· patent location history
2003Based in Hirakata, JP· patent location history
2013Patents assigned to OHTSUKI TAKESHI (1)· patent assignee history
2013Patents assigned to RENESAS ELECTRONICS CORP (1)· patent assignee history
2013Patents assigned to TAKEDA HIROMI (1)· patent assignee history
2013Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22000–2003
OHTSUKI TAKESHI12013
RENESAS ELECTRONICS CORP12013
TAKEDA HIROMIself12013
WEYERHAEUSER CO11991
Locations
LocationPatentsSpan
Kanagawa, JP12013
Hirakata, JP12003
Kyoto, JP12000
Musashino, JP11991