LexDanaLexDanabeta
Inventor

Tetsuo Oyama

Inventor
Takahagi, JP

Overview

4→
Patents
1978–2001
Patent span
Electricity
Primary field (CPC H)

Patents· 4 as inventor

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

Y02Eprimary
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution33%
C22CAlloys22%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy22%
G21BFusion reactors11%
H01JElectric discharge tubes or discharge lamps11%
PatentTitleYear
6,329,099'Sodium-sulfur battery, and a battery system using same'20015,962,160'Sodium-sulfur battery, and a battery system using same'19995,182,075'Nuclear fusion reactor'19934,114,243'Process for producing cathode for cathode ray tube of directly heating type'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–2001Patents assigned to HITACHI LTD (4)· patent assignee history
1978–2001Based in Takahagi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD41978–2001
Locations
LocationPatentsSpan
Takahagi, JP41978–2001