Inventor
Keiichi Akiyama
Inventor
Tamayama, JP
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography31%
C04BLime, magnesia15%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds15%
H01BCables15%
B41JTypewriters8%
B41MPrinting, duplicating, marking, or copying processes8%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
6,011,573'Manufacturing apparatus for thermal transfer recording medium and renewing apparatus of thermal transfer recording medium'20005,220,392'Electrophotographic printer'19935,049,905'Image forming method, exposure method, image forming apparatus and deposited toner layer control apparatus'19914,956,677'Cleaning device for image forming apparatus'19904,785,317'Double-side printer'19884,330,336'Method of producing low-line aluminous cement from aluminum smelting residue'19824,107,153'Heat-resistant thermosetting polyimide resin'19784,097,545'Heat-resistant thermosetting polyimide resin with bis-phenol-epichlorohydrin reaction product'19784,071,373'Process for the manufacture of aluminous cement from aluminum smelting residue'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978Patents assigned to TOSHIBA CHEM PROD (2)· patent assignee history
1978Patents assigned to ALUMINUM ALLOY REFINERS ASS (1)· patent assignee history
1978–1982Based in Tokyo, JP· patent location history
1978Based in Yokosuka, JP· patent location history
1982Patents assigned to JAPAN ALUMINIUM ALLOY REFINERS (1)· patent assignee history
1988–2000Patents assigned to ALPS ELECTRIC CO LTD (5)· patent assignee history
1988–1993Based in Tamayama, JP· patent location history
1990Based in Iwate, JP· patent location history
2000Based in Iwate-ken, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ALPS ELECTRIC CO LTD | 5 | 1988–2000 |
| TOSHIBA CHEM PROD | 2 | 1978 |
| ALUMINUM ALLOY REFINERS ASS | 1 | 1978 |
| JAPAN ALUMINIUM ALLOY REFINERS | 1 | 1982 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tamayama, JP | 3 | 1988–1993 |
| Tokyo, JP | 2 | 1978–1982 |
| Yokosuka, JP | 2 | 1978 |
| Iwate-ken, JP | 1 | 2000 |
| Iwate, JP | 1 | 1990 |