Inventor
Toshiki Kahara
Inventor
Ibaraki, JP
Overview
19→
Patents
1980–2006
Patent span
General tagging of new technological developments
Primary field (CPC Y)
Patents· 19 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Mprimary
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy42%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution37%
Y02PClimate change mitigation technologies in the production or processing of goods7%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry5%
C01BNon-metallic elements2%
H02JElectric power networks2%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications2%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%
PatentTitleYear
7,091,625'Home-use fuel cell system'20065,676,922'Chemical reactor replacement method'19975,563,003'Fuel cell and supplementary electrolyte container and method for supplementing fuel cell with electrolyte'19965,346,777'Chemical reaction installation'19945,213,909'Insulated fuel cell'19935,212,022'Internal-reforming fuel cells and power stations using the same'19934,902,587'Fuel cell'19904,810,595'Molten carbonate fuel cell, and its operation control method'19894,643,957'Fuel cell'19874,623,415'Method of making fuel cell'19864,555,452'Method for operating fuel cell'19854,529,671'Fuel cell'19854,493,879'Fuel cell'19854,446,210'Fuel cell electrode'19844,407,905'Fuel cell'19834,324,828'Structure of positive plate of enclosed type battery'19824,297,231'Process for producing a positive electrode for a non-aqueous electrolytic cell'19814,259,415'Primary battery'19814,197,366'Non-aqueous electrolyte cells'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–2006Patents assigned to HITACHI LTD (18)· patent assignee history
1980–1986Patents assigned to HITACHI CHEMICAL CO LTD (4)· patent assignee history
1981–1996Based in Ibaraki, JP· patent location history
1981–2006Based in Tokai, JP· patent location history
1985–1986Based in Toukai, JP· patent location history
1989Patents assigned to NEW ENERGY DEV ORG (1)· patent assignee history
1993Based in Naka, JP· patent location history
1997Based in Yawara-mura, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 18 | 1980–2006 |
| HITACHI CHEMICAL CO LTD | 4 | 1980–1986 |
| NEW ENERGY DEV ORG | 1 | 1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ibaraki, JP | 11 | 1981–1996 |
| Tokai, JP | 3 | 1981–2006 |
| Toukai, JP | 2 | 1985–1986 |
| Yawara-mura, JP | 1 | 1997 |
| Naka, JP | 1 | 1993 |