Inventor
Takuo Harato
Inventor
Niihama, JP
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C01Fprimary
C01FCompounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare-earth metals63%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds19%
B01DSeparation13%
C22BProduction and refining of metals6%
PatentTitleYear
6,299,846'Process for producing aluminum hydroxide from alumina-containing ore'20015,833,865'Sedimentation type solid-liquid separator'19985,545,384'Process for production of aluminum hydroxide from ore containing alumina'19965,302,368'Process for preparation of alumina'19944,426,363'Process for extracting alumina from aluminous ores'19844,421,615'Process for producing metallic gallium'19834,364,919'Process for producing coarse grains of aluminum hydroxide'19824,311,486'Process for producing coarse grains of aluminum hydroxide'19824,263,261'Method for the removal of impurities from sodium aluminate solution'19814,222,992'Process for the removal of sulfur oxides from exhaust gases using slurry of red mud containing calcium ion'19804,215,094'Method for the removal of organic substances from alkali metal aluminate solution'19804,201,749'Method for the separation of precipitated aluminum hydroxide from sodium aluminate solution'19804,128,618'Process for extracting alumina from alumina-containing ores'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1984Patents assigned to SUMITOMO ALUMINIUM SMELTING CO (9)· patent assignee history
1978–1998Based in Niihama, JP· patent location history
1983–2001Patents assigned to SUMITOMO CHEMICAL CO (5)· patent assignee history
1994–2001Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SUMITOMO ALUMINIUM SMELTING CO | 9 | 1978–1984 |
| SUMITOMO CHEMICAL CO | 5 | 1983–2001 |
Locations
| Location | Patents | Span |
|---|---|---|
| Niihama, JP | 11 | 1978–1998 |
| Tokyo, JP | 2 | 1994–2001 |