LexDanaLexDanabeta
Inventor

Yoshihito Ichiyama

Inventor
Kanagawa, JP

Overview

3→
Patents
1995–2010
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.

H04Mprimary
H04MTelephonic communication75%
H01HElectric switches25%
PatentTitleYear
7,839,627'Portable electronic apparatus'20106,504,911'Telephone device'20035,418,841'Telephone answering machine with non-volatile memory'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2010Patents assigned to SONY CORP (3)· patent assignee history
1995Based in Tokyo, JP· patent location history
2003–2010Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SONY CORP31995–2010
Locations
LocationPatentsSpan
Kanagawa, JP22003–2010
Tokyo, JP11995