Inventor
Hiroyuki Shiga
Inventor
Tokyo, JP
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Tprimary
Y10TTechnical subjects covered by former us classification21%
B23PMetal-working not otherwise provided for14%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling7%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding7%
B43KImplements for writing or drawing7%
B65GTransport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors7%
C22CAlloys7%
C22FChanging the physical structure of non-ferrous metals and non-ferrous alloys7%
F01LCyclically operating valves for machines or engines7%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general7%
PatentTitleYear
9,027,215'Production apparatus'20158,793,851'Retainer assembling apparatus and retainer assembling method'20148,460,482'Heat-resistant alloy spring and Ni-based alloy wire therefor'20137,992,705'Roller unit and conveyor device'20117,310,942'Exhaust passage control valve'20075,096,322'Nib for a writing instrument'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992Based in Kita-ku, JP· patent location history
2007–2013Patents assigned to CHUO HATSUJO KK (2)· patent assignee history
2007Based in Tokai, JP· patent location history
2011–2015Patents assigned to HIRATA SPINNING (3)· patent assignee history
2011–2015Based in Tokyo, JP· patent location history
2013–2015Patents assigned to SHIGA HIROYUKI (3)· patent assignee history
2013Patents assigned to ICHIKAWA SHOJI (1)· patent assignee history
2013Patents assigned to KAWAHATA NAOYUKI (1)· patent assignee history
2013Based in Nagoya, JP· patent location history
2014Based in Shinagawa-ku, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HIRATA SPINNING | 3 | 2011–2015 |
| SHIGA HIROYUKIself | 3 | 2013–2015 |
| CHUO HATSUJO KK | 2 | 2007–2013 |
| ICHIKAWA SHOJI | 1 | 2013 |
| KAWAHATA NAOYUKI | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 2 | 2011–2015 |
| Shinagawa-ku, JP | 1 | 2014 |
| Nagoya, JP | 1 | 2013 |
| Tokai, JP | 1 | 2007 |
| Kita-ku, JP | 1 | 1992 |