Inventor
Hidemasa Honda
Inventor
Tokyo, JP
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C04Bprimary
C04BLime, magnesia16%
C10CWorking-up pitch, asphalt, bitumen, tar16%
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons16%
C01BNon-metallic elements11%
Y10TTechnical subjects covered by former us classification11%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds5%
C10GCracking hydrocarbon oils5%
C10LFuels not otherwise provided for5%
D01DMechanical methods or apparatus in the manufacture of artificial filaments, threads, fibres, bristles or ribbons5%
F16JPistons5%
PatentTitleYear
5,188,894'Composite carbon fiber and process for preparing same'19934,873,071'Graphite structures and method for production thereof'19894,818,449'Process to prevent crack formation in the production of carbon fibers'19894,606,808'Method for the preparation of pitches for spinning carbon fibers'19864,590,055'Pitch-based carbon fibers and pitch compositions and precursor fibers therefor'19864,189,373'Process for the production of ashless liquid fuels'19804,046,863'Process for the production of shaped articles of high density graphite'19774,040,941'Process for liquefying coal'19773,956,436'Process for producing micro-beads and product containing the same'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1993Patents assigned to AGENCY IND SCIENCE TECHN (7)· patent assignee history
1976–1980Based in Tosu, JP· patent location history
1986–1993Based in Tokyo, JP· patent location history
1989Patents assigned to ITARU TODOROK DIRECTOR GENERAL (1)· patent assignee history
1989Patents assigned to KOA OIL COMPANY LIMITED DIRECT (1)· patent assignee history
1989Patents assigned to MARUZEN PETROCHEM CO LTD (1)· patent assignee history
1989Based in Suginami-ku, JP· patent location history
1993Patents assigned to TANAKA PRECIOUS METAL IND (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| AGENCY IND SCIENCE TECHN | 7 | 1976–1993 |
| ITARU TODOROK DIRECTOR GENERAL | 1 | 1989 |
| KOA OIL COMPANY LIMITED DIRECT | 1 | 1989 |
| MARUZEN PETROCHEM CO LTD | 1 | 1989 |
| TANAKA PRECIOUS METAL IND | 1 | 1993 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 4 | 1986–1993 |
| Tosu, JP | 4 | 1976–1980 |
| Suginami-ku, JP | 1 | 1989 |