Inventor

Yoshihito Yamamoto

Inventor
Yokohama, JP

Overview

6→
Patents
1981–2013
Patent span
Electricity
Primary field (CPC H)

Patents· 6 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 transducer15%
H04MTelephonic communication15%
G09BEducational or demonstration appliances8%
H04BTransmission8%
H04HBroadcast communication8%
H04LTransmission of digital information, e.g. telegraphic communication8%
H04NPictorial communication, e.g. television8%
H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation8%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h108%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution8%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1984Patents assigned to SONY CORP (2)· patent assignee history
1981–1984Based in Yokohama, JP· patent location history
1985Patents assigned to MITSUBISHI ELECTRIC CORP (1)· patent assignee history
1985Based in Nagaokakyo, JP· patent location history
2004Patents assigned to SEMICONDUCTOR ENERGY LAB (1)· patent assignee history
2004Patents assigned to TDK CORP (1)· patent assignee history
2004Based in Chuo-ku, JP· patent location history
2010–2013Patents assigned to PANASONIC CORP (2)· patent assignee history
2010Based in Saitama, JP· patent location history
2013Based in Fukuoka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PANASONIC CORP22010–2013
SONY CORP21981–1984
MITSUBISHI ELECTRIC CORP11985
SEMICONDUCTOR ENERGY LAB12004
TDK CORP12004
Locations
LocationPatentsSpan
Yokohama, JP21981–1984
Fukuoka, JP12013
Saitama, JP12010
Chuo-ku, JP12004
Nagaokakyo, JP11985