LexDanaLexDanabeta
Inventor

Tsunehide Takahashi

Inventor
Tokyo, JP

Overview

3→
Patents
1990–2011
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

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

G03Gprimary
G03GElectrography50%
H01HElectric switches25%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems25%
PatentTitleYear
7,933,110'Power control device and image forming apparatus'20114,959,687'Bias power source controller for an image forming apparatus'19904,908,753'High-tension power supply for an image recorder'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990Patents assigned to RICOH KK (2)· patent assignee history
1990–2011Based in Tokyo, JP· patent location history
2011Patents assigned to RICOH CO LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH KK21990
RICOH CO LTD12011
Locations
LocationPatentsSpan
Tokyo, JP31990–2011