Inventor
Hajime Ishimaru
Inventor
Tsukuba, JP
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B03Cprimary
B03CMagnetic or electrostatic separation of solid materials from solid materials or fluids8%
C23CCoating metallic material8%
F17CVessels for containing or storing compressed, liquefied or solidified gases8%
H01RElectrically-conductive connections8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
B01DSeparation4%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry4%
B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling4%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form4%
B65BMachines, apparatus or devices for, or methods of, packaging articles or materials4%
PatentTitleYear
5,737,906'Quick pressure reducing apparatus'19985,714,272'Heat insulating film'19985,350,275'Turbomolecular pump having vanes with ceramic and metallic surfaces'19945,125,124'Electrostatic dust collector for use in vacuum system'19925,070,701'Cooling apparatus'19914,969,556'Vacuum container'19904,941,224'Electrostatic dust collector for use in vacuum system'19904,782,316'Core winding with inorganic insulation between the inner conductor and outer metal sheath'19884,715,186'Coolant preservation container'19874,607,491'Cooling trap for vacuum'19864,594,054'Ion pump'19864,578,973'Process for producing hollow aluminum extrudates for use in a high vacuum environment'19864,562,992'Seal device for gate valve'19864,231,003'Shield-type coaxial vacuum feedthrough'19804,176,901'Bakable multi-pins vacuum feedthrough'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979–1988Based in Ibaraki, JP· patent location history
1980Patents assigned to DIRECTOR GENERAL OF NATIONAL L (1)· patent assignee history
1986–1992Patents assigned to ISHIMARU HAJIME (6)· patent assignee history
1986Patents assigned to FUJI BELLOWS CO LTD (1)· patent assignee history
1986Based in Niihari-gun, JP· patent location history
1986Based in Sakura, JP· patent location history
1990–1992Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (3)· patent assignee history
1990–1998Based in Tsukuba, JP· patent location history
1992Based in Ibaraki-shi, JP· patent location history
1994–1998Patents assigned to ZAIDAN HOUJIN SHINKU KAGAKU KE (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ISHIMARU HAJIMEself | 6 | 1986–1992 |
| MATSUSHITA ELECTRIC INDUSTRIAL CO LTD | 3 | 1990–1992 |
| ZAIDAN HOUJIN SHINKU KAGAKU KE | 2 | 1994–1998 |
| DIRECTOR GENERAL OF NATIONAL L | 1 | 1980 |
| FUJI BELLOWS CO LTD | 1 | 1986 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tsukuba, JP | 6 | 1990–1998 |
| Ibaraki, JP | 6 | 1979–1988 |
| Ibaraki-shi, JP | 1 | 1992 |
| Niihari-gun, JP | 1 | 1986 |
| Sakura, JP | 1 | 1986 |