Inventor

Kiyoshi Otaka

Inventor
Takahagi, JP

Overview

3→
Patents
1984–2001
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

C22Cprimary
C22CAlloys22%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy22%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution22%
C23CCoating metallic material11%
F01DNon-positive displacement machines or engines, e.g. steam turbines11%
Y02TClimate change mitigation technologies related to transportation11%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–2001Patents assigned to HITACHI LTD (3)· patent assignee history
1984–2001Based in Takahagi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD31984–2001
Locations
LocationPatentsSpan
Takahagi, JP31984–2001