Inventor
Hiroshi Chikuma
Inventor
Tokyo, JP
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F28Fprimary
F28FDetails of heat-exchange and heat-transfer apparatus, of general application31%
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact23%
Y10TTechnical subjects covered by former us classification11%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material6%
B60GVehicle suspension arrangements6%
F16FSprings6%
B23KSoldering or unsoldering3%
B23PMetal-working not otherwise provided for3%
B60TVehicle brake control systems or parts thereof3%
F04BPositive-displacement machines for liquids3%
PatentTitleYear
10,293,800Brake system20199,731,575'Suspension apparatus'20177,722,331'Control system for air-compressing apparatus'20107,392,837'Integral-type heat exchanger'20087,219,781'Electromagnetic suspension system'20077,108,049'Integral-type heat exchanger'20066,904,964'Heat exchanger core, and method of assembling the heat exchanger core'20056,874,230'Method of manufacturing heat exchanger'20056,871,399'Method for producing an integrated heat exchanger and an integrated heat exchanger produced thereby'20056,837,304'Integral-type heat exchanger'20056,708,730'Temporary fixing structure for tubular bodies'20046,651,334'Tank of heat exchanger and method of producing same'20036,450,253'Tank of heat exchanger'20026,364,005'Integral-type heat exchanger'20026,095,239'Integral-type heat exchanger'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2008Patents assigned to CALSONIC KANSEI CORP (11)· patent assignee history
2000–2008Based in Tokyo, JP· patent location history
2002–2005Based in Kanagawa, JP· patent location history
2007–2010Patents assigned to HITACHI LTD (2)· patent assignee history
2007Based in Chiba, JP· patent location history
2010–2019Based in Matsudo, JP· patent location history
2017–2019Patents assigned to HITACHI AUTOMOTIVE SYSTEMS LTD (2)· patent assignee history
2017Patents assigned to CHIKUMA HIROSHI (1)· patent assignee history
2017Patents assigned to HIRAO RYUSUKE (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CALSONIC KANSEI CORP | 11 | 2000–2008 |
| HITACHI AUTOMOTIVE SYSTEMS LTD | 2 | 2017–2019 |
| HITACHI LTD | 2 | 2007–2010 |
| CHIKUMA HIROSHIself | 1 | 2017 |
| HIRAO RYUSUKE | 1 | 2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 7 | 2000–2008 |
| Kanagawa, JP | 4 | 2002–2005 |
| Matsudo, JP | 3 | 2010–2019 |
| Chiba, JP | 1 | 2007 |