Inventor

Keiko Kitagawa

Inventor

Tokyo, JP

Overview

2→

Patents

1990–1994

Patent span

Human necessities

Primary field (CPC A)

Patents· 2 as inventor

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

A63Fprimary

A63FCard, board, or roulette games14%

A63HToys, e.g. tops, dolls, hoops or building blocks14%

G04GElectronic time-pieces14%

G09BEducational or demonstration appliances14%

H04NPictorial communication, e.g. television14%

H04WWireless communication networks14%

Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use14%

PatentTitleYear

5,334,022'Auditory playing device'1994 4,903,130'Broadcast satellite receiver'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1994Patents assigned to SONY CORP (2)· patent assignee history

1990–1994Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SONY CORP	2	1990–1994

Locations

Location	Patents	Span
Tokyo, JP	2	1990–1994