Inventor
Fumio Tomizawa
Inventor
Hitachi, JP
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F27Dprimary
F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace19%
Y02PClimate change mitigation technologies in the production or processing of goods19%
C21BManufacture of iron or steel10%
C21CProcessing of pig-iron, e.g. refining, manufacture of wrought-iron or steel10%
F27BFurnaces, kilns, ovens or retorts in general10%
G05BControl or regulating systems in general10%
B25JManipulators5%
G01NInvestigating or analysing materials by determining their chemical or physical properties5%
G21CNuclear reactors5%
H04NPictorial communication, e.g. television5%
PatentTitleYear
4,837,734'Method and apparatus for master-slave manipulation supplemented by automatic control based on level of operator skill'19894,811,248'Method of an apparatus for determining working original point for multi-joint manipulator'19894,694,465'Apparatus for automatically charging scrap into an arc furnace'19874,668,976'Radiation resistant color television camera'19874,655,085'Trackless scanner'19874,638,487'Shroud for arc furnace'19874,566,843'Multiarticulated manipulator'19864,434,495'Cooling pipe structure for arc furnace'19844,395,023'Shroud for steel making electric-arc furnace'19834,224,056'Direct reduction process for iron ores with fluidized bed system'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1987Patents assigned to ISHIKAWAJIMA HARIMA HEAVY IND (5)· patent assignee history
1980–1987Based in Yokohama, JP· patent location history
1986–1989Patents assigned to HITACHI LTD (5)· patent assignee history
1986–1989Based in Hitachi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 5 | 1986–1989 |
| ISHIKAWAJIMA HARIMA HEAVY IND | 5 | 1980–1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hitachi, JP | 5 | 1986–1989 |
| Yokohama, JP | 5 | 1980–1987 |