Inventor
Hiroshi Kihira
Inventor
Futtsu, JP
Overview
19→
Patents
1989–2018
Patent span
General tagging of new technological developments
Primary field (CPC Y)
Patents· 19 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Mprimary
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy20%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution20%
Y02PClimate change mitigation technologies in the production or processing of goods16%
G01NInvestigating or analysing materials by determining their chemical or physical properties11%
C23CCoating metallic material9%
C22CAlloys5%
Y10TTechnical subjects covered by former us classification5%
B22FWorking metallic powder4%
B24DTools for grinding, buffing or sharpening2%
B29CShaping or joining of plastics2%
PatentTitleYear
10,074,857Titanium or titanium alloy material for fuel cell separator having high contact conductivity with carbon and high durability, fuel cell separator including the same, and manufacturing method therefor20189,947,942Titanium material or titanium alloy material for fuel cell separator having high contact conductivity with carbon and high durability, fuel cell separator including the same, and fuel cell20189,065,081'Titanium material for solid polymer fuel cell separator use and method of production of same'20158,845,400'Rotary grinding tool and its production method'20148,785,031'Polymer electrolyte fuel cell separator made of pure titanium or titanium alloy and method of production of same'20148,603,268'Titanium material for solid polymer fuel cell separator having low contact resistance and method of production of same'20138,361,676'Solid polymer type fuel cell separator and method of production of same'20138,304,141'Stainless steel, titanium, or titanium alloy solid polymer fuel cell separator and its method of production and method of evaluation of warp and twist of separator'20128,182,961'Solid polymer type fuel cell separator and method of production of same'20127,807,281'Stainless steel, titanium, or titanium alloy solid polymer fuel cell separator and its method of production and method of evaluation of warp and twist of separator'20107,231,318'Method for predicting degree of corrosion of weather-resistant steel'20076,726,953'Method for depositing metal having high corrosion resistance and low contact resistance against carbon on separator for fuel cell'20046,709,781'Separators for solid polymer fuel cells and method for producing same, and solid polymer fuel cells'20046,703,143'Metal foil excellent in electrical contact stability'20045,691,811'Method of and apparatus for detecting defect of transparent sheet as sheet glass'19974,962,360'Sensor for electrochemical measurement and method for diagnosing corrosion protective properties of metal surface coating by using the sensor'19904,861,453'Corrosion detecting probe for steel buried in concrete'19894,806,849'Method and apparatus for diagnosing degradation of coating film on metal material'19894,800,165'Method of detecting corrosion rate of member of steel material'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–2013Patents assigned to NIPPON STEEL CORP (11)· patent assignee history
1989–1990Based in Kawasaki, JP· patent location history
1997Based in Matsusaka, JP· patent location history
2004–2013Based in Futtsu, JP· patent location history
2007–2014Based in Chiba, JP· patent location history
2012–2015Patents assigned to KIHIRA HIROSHI (7)· patent assignee history
2012–2014Patents assigned to KANEKO MICHIO (5)· patent assignee history
2012–2015Patents assigned to TANAKA KOKI (5)· patent assignee history
2012–2014Patents assigned to HISADA WATARU (4)· patent assignee history
2013–2018Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON STEEL CORP | 11 | 1989–2013 |
| KIHIRA HIROSHIself | 7 | 2012–2015 |
| KANEKO MICHIO | 5 | 2012–2014 |
| TANAKA KOKI | 5 | 2012–2015 |
| HISADA WATARU | 4 | 2012–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Futtsu, JP | 7 | 2004–2013 |
| Tokyo, JP | 5 | 2013–2018 |
| Kawasaki, JP | 4 | 1989–1990 |
| Chiba, JP | 2 | 2007–2014 |
| Matsusaka, JP | 1 | 1997 |