Inventor
Youichi Ishikawa
Inventor
Tokyo, JP
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography39%
Y10TTechnical subjects covered by former us classification17%
G01NInvestigating or analysing materials by determining their chemical or physical properties11%
B23BTurning6%
B29CShaping or joining of plastics6%
B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts6%
C04BLime, magnesia6%
G02BOptical elements, systems or apparatus6%
Y02PClimate change mitigation technologies in the production or processing of goods6%
PatentTitleYear
6,652,433'Oil application roller for use in an image-forming apparatus'20036,212,356'Fixing apparatus'2001RE036962'Fixing device for electrophotographic apparatus'20006,137,984'Toner image fixing apparatus'20005,853,832'Oil application roll for electrophotograph fixation and method of fabricating the same'19985,465,146'Fixing device for electrophotographic apparatus'1995D0357692'Cutter insert'1995D0345984'Cutter insert'1994D0345985'Cutter insert'19945,282,703'Indexable cutter insert'19944,981,519'Hydraulic hardening material and method of manufacturing the same'19914,757,347'Oil applying roller for use in an electrophotographic copying apparatus'19884,252,627'Electrical oxygen probe'19814,178,223'Electrical oxygen probe'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979–1981Patents assigned to ORIENTAL YEAST CO LTD (2)· patent assignee history
1979–2000Based in Tokyo, JP· patent location history
1988–2003Patents assigned to NITTO KOGYO KK (7)· patent assignee history
1988Patents assigned to HODAKA KOGYO KK (1)· patent assignee history
1988Based in Numazu, JP· patent location history
1994–1995Patents assigned to MITSUBISHI MATERIALS CORP (4)· patent assignee history
1994–1995Based in Ibaraki, JP· patent location history
2001Based in Minato-ku, JP· patent location history
2003Patents assigned to HODAKA KOGYO (1)· patent assignee history
2003Based in Shizuoka, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NITTO KOGYO KK | 7 | 1988–2003 |
| MITSUBISHI MATERIALS CORP | 4 | 1994–1995 |
| ORIENTAL YEAST CO LTD | 2 | 1979–1981 |
| HODAKA KOGYO | 1 | 2003 |
| HODAKA KOGYO KK | 1 | 1988 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 7 | 1979–2000 |
| Ibaraki, JP | 4 | 1994–1995 |
| Shizuoka, JP | 1 | 2003 |
| Minato-ku, JP | 1 | 2001 |
| Numazu, JP | 1 | 1988 |