Inventor
Hiroaki Nasu
Inventor
Gifu, JP
Overview
Patents· 31 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Tprimary
H01TSpark gaps29%
C23CCoating metallic material15%
F23QIgnition8%
H04NPictorial communication, e.g. television8%
E04FFinishing work on buildings, e.g. stairs, floors6%
G06FElectric digital data processing6%
G11CStatic stores6%
C25DProcesses for the electrolytic or electrophoretic production of coatings5%
F02PIgnition, other than compression ignition, for internal-combustion engines3%
G06TImage data processing or generation, in general3%
PatentTitleYear
10,303,810Problem structure extraction support system, problem structure extraction support method, and program20199,130,355'Spark plug'20158,946,976'Spark plug'20158,853,927'Spark plug, and main metal fitting for spark plug'20148,742,653'Spark plug and metal shell for spark plug'20148,716,924'Spark plug having stress corrosion cracking resistance'20148,704,434'Spark plug and method of manufacturing the same'20148,692,447'Spark plug for internal combustion engine and manufacturing method thereof'20148,593,046'Spark plug having a novel nickel coating for the metal shell'20138,477,934'Pairing computation device, pairing computation method and recording medium storing pairing computation program'20138,421,324'Spark plug, metal shell for spark plug, and method of manufacturing spark plug'20137,492,402'Image-processing device, image-processing method and solid-state image pickup device'20097,420,604'Image-processing device with image-pickup validity indication and processing method thereof'20087,122,947'Glow plug and spark plug, and manufacturing method therefor'20067,080,785'Image-processing device, image-processing method and solid-state image-pickup device'20066,846,416'Process for treating chromate waste liquid'20056,838,809'Chromate film-containing plug metal component and method for producing the same'20056,791,245'Glow plug and spark plug, and manufacturing method therefor'20046,768,249'Spark plug and producing method therefor'20046,766,408'Semiconductor integrated circuit and method for writing into non-volatile memory using a program received by external communication'20046,688,932'Method for manufacturing spark plug and caulking metallic mold'20046,538,365'Metal member with chromate coat, spark plug with chromate coat and manufacturing methods thereof'20036,528,929'Spark plug with iridium-based alloy chip'20036,437,493'Glow plug and spark plug, and manufacturing method therefor'20026,411,550'Semiconductor integrated-circuit device'20026,388,924'Semiconductor integrated device and electronic apparatus mounted with the device'20026,236,148'Spark plug with specific metal shell coating'20016,121,719'Spark plug having a multi-layered electrode'20006,088,262'Semiconductor device and electronic equipment having a non-volatile memory with a security function'20005,548,696'Image processing apparatus'19965,309,560'Data selection device'1994Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1994–2009Patents assigned to SEIKO EPSON CORP (9)· patent assignee history
1994–2000Based in Suwa, JP· patent location history
2000–2015Patents assigned to NGK SPARK PLUG CO (20)· patent assignee history
2000–2006Based in Nagoya, JP· patent location history
2002–2009Based in Fujimi, JP· patent location history
2003–2005Based in Aichi, JP· patent location history
2013–2015Patents assigned to NASU HIROAKI (7)· patent assignee history
2013–2015Patents assigned to KODAMA KAZUHIRO (4)· patent assignee history
2013–2014Patents assigned to SATO AKITO (2)· patent assignee history
2013–2015Based in Gifu, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NGK SPARK PLUG CO | 20 | 2000–2015 |
| SEIKO EPSON CORP | 9 | 1994–2009 |
| NASU HIROAKIself | 7 | 2013–2015 |
| KODAMA KAZUHIRO | 4 | 2013–2015 |
| SATO AKITO | 2 | 2013–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Gifu, JP | 9 | 2013–2015 |
| Nagoya, JP | 6 | 2000–2006 |
| Fujimi, JP | 5 | 2002–2009 |
| Aichi, JP | 4 | 2003–2005 |
| Suwa, JP | 3 | 1994–2000 |