Inventor
Hideki Okada
Inventor
Osaka, JP
Overview
Patents· 101 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography21%
C07CAcyclic or carbocyclic compounds13%
B41JTypewriters4%
C07DHeterocyclic compounds4%
C21DModifying the physical structure of ferrous metals4%
F16FSprings4%
B23KSoldering or unsoldering3%
A61KPreparations for medical, dental or toiletry purposes3%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material3%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium3%
PatentTitleYear
11,130,359Liquid discharge apparatus, ink jet recording method, and pigment textile printing ink composition202111,111,554Stabilizer202111,067,909Terphenyl compound, electrophotographic photosensitive member, and method for producing terphenyl compound202110,836,013Vertical motion impeller-type shot peening device and coil spring202010,807,215Coil spring processing device202010,753,928Protein detection method, and protein immunoassay method202010,704,194Ink jet ink composition for textile printing and ink jet textile printing method202010,661,323Apparatus for and method of manufacturing roll-formed component having variable width202010,656,543Electrophotographic photosensitive member, process cartridge, and image forming apparatus202010,583,706Method of manufacturing a suspension coil spring202010,570,112Synthetic intermediate of 1-(2-deoxy-2-fluoro-4-thio-b-D-arabinofuranosyl)cytosine, synthetic intermediate of thionucleoside, and method for producing the same202010,545,418Electrophotographic photosensitive member, process cartridge, and image forming apparatus202010,518,557Drying apparatus, recording apparatus, and drying method201910,464,345Drying apparatus, recording apparatus, and drying method201910,442,269Hollow stabilizer201910,415,110Method for producing hollow stabilizer201910,359,714Electrophotographic photosensitive member201910,338,485Electrophotographic photosensitive member201910,315,287Vertical motion impeller-type shot peening device and coil spring201910,293,431Friction stir spot welding apparatus and friction stir spot welding method201910,209,638Electrophotographic photosensitive member201910,201,873Friction stir spot welding device and friction stir spot welding method201910,175,589Quinone derivative and electrophotographic photosensitive member201910,126,667Quinone derivative and electrophotographic photosensitive member201810,093,645Synthetic intermediate of 1-(2-deoxy-2-fluoro-4-thio-b-D-arabinofuranosyl)cytosine, synthetic intermediate of thionucleoside, and method for producing the same201810,078,277Electrophotographic photosensitive member20189,964,869Triarylamine derivative, electrophotographic photosensitive member, and method for producing electrophotographic photosensitive member20189,952,521Naphthalenedicarboximide derivative and electrophotographic photosensitive member20189,933,712Multi-layer electrophotographic photosensitive member, process cartridge, and image forming apparatus20189,884,882'Method for producing thiolane skeleton-type glycoconjugate, and thiolane skeleton-type glycoconjugate'20189,839,973'Friction stir spot welding apparatus, friction stir spot welding method, and perpendicular-to-plane detection device for use in friction stir spot welding'20179,817,325'Benzidine derivative, method for producing benzidine derivative, and electrophotographic photosensitive member'20179,791,793'Electrophotographic photosensitive member'20179,783,493'Quinone derivative and electrophotographic photosensitive member'20179,783,491'Quinone derivative and electrophotographic photosensitive member'20179,690,217'Triarylamine derivative, electrophotographic photosensitive member, and image forming apparatus'20179,684,254'Diamine compound and electrophotographic photosensitive member'20179,684,253'Triphenylamine derivative, electrophotographic photosensitive member, and image forming apparatus'20179,581,921'Electrophotographic photosensitive member'20179,494,881'Triarylamine derivative and electrophotographic photosensitive member'20169,475,835'Synthetic intermediate of 1-(2-deoxy-2-fluoro-4-thio-β-D-arabinofuranosyl) cytosine, synthetic intermediate of thionucleoside, and method for producing the same'20169,454,091'Hydrazone derivative of triphenylamine and electrophotographic photosensitive member'20169,447,022'Triarylamine derivative and electrophotographic photosensitive member'20169,436,105'Triarylamine derivative and electrophotographic photosensitive member'20169,429,859'Electrophotographic photosensitive member'20169,404,547'Steel for high-strength spring, method for producing same, and high-strength spring'20169,383,664'Electrophotographic photosensitive member'20169,376,371'Triphenylamine derivative, method for manufacturing the same, and electrophotographic photosensitive member'20169,348,243'Electrophotographic photosensitive member'20169,314,870'Friction stir spot welding device and friction stir spot welding method'20169,302,343'Process for spot-joining stacked metal foils'20169,256,144'Electrophotographic photosensitive member and image forming apparatus'20169,221,865'Synthetic intermediate of 1-(2-deoxy-2-fluoro-4-thio-β-D-arabinofuranosyl)cytosine, synthetic intermediate of thionucleoside, and method for producing the same'20159,193,151'Ink jet recording method'20159,187,514'Synthetic intermediate of 1-(2-deoxy-2-fluoro-4-thio-β-D-arabinofuranosyl)cytosine, synthetic intermediate of thionucleoside, and method for producing the same'20159,109,133'Ink jet ink and recorded object'20159,095,926'Friction stir spot welding device and friction stir spot welding method'20159,023,564'Azoquinone compound, electrophotographic photoconductor, and image forming apparatus'20159,004,664'Ink jet recording aqueous pigment ink'20158,950,650'Friction stir spot welding device and friction stir spot welding method'20158,852,837'Toner, method for forming image, and image forming apparatus'20148,777,393'Ink jet recording method'20148,695,956'Compression coil spring and manufacturing device and manufacturing method for coil spring'20148,679,710'Electrophotographic photoreceptor and image forming apparatus'20148,607,605'Manufacturing method for coil spring'20138,533,954'Method for manufacturing a coil spring for vehicle suspension'20138,471,061'5-aminolevulinic acid salt, process for producing the same and use thereof'20138,460,483'Method for heat treatment of coiled spring'20138,449,098'Ink jet recording method'20138,430,497'Ink jet recording method'20138,308,150'Coil spring for vehicle suspension and method for manufacturing the same'20128,252,497'Toner, toner production method, and image forming device using the same'20128,173,839'5-aminolevulinic acid salt, process for producing the same and use thereof'20128,148,574'Method for producing 5-aminolevulinic acid hydrochloride'20127,745,081'Diphenyl amine derivative, production method therefor and electrophotographic photoconductor'20107,700,251'Electrophotographic photoconductor and image-forming apparatus'20107,601,625'Method for manufacturing semiconductor device having solder layer'20097,495,538'Inductor using drum core and method for producing the same'20097,399,372'Method for manufacturing metallic bellows'20087,187,896'Fixing device'20077,149,463'Fixing device'20066,820,317'Method of making a metallic bellows'20046,607,903'Genes encoding desulfurization enzymes'20036,605,401'Toner and development unit and image forming apparatus using the same'20036,564,606'Manufacturing method and manufacturing apparatus for metallic bellows'20036,479,271'Genes encoding desulfurization enzymes'20026,420,158'Gene encoding desulfurases'20026,383,698'Electrophotosensitive material using quinone derivative'20026,358,654'Toner and development unit and image forming apparatus using the same'20026,146,802'Toner and development unit and image forming apparatus using the same'20005,977,389'Naphthoquinone derivative'19995,655,197'Developing device'19975,557,060'Developing device'19965,475,469'Image forming equipment with depletion detection in an toner endless circulation path'19955,332,877'Pictorial symbol switch'19945,332,593'Method of producing minced fish meat'1994D0300744'Combined computer display terminal and telephone'1989D0300533'Combined computer display terminal and telephone'19894,689,520'Color cathode ray tube having an improved color phosphor screen'1987D0279096'Combined tape deck, phonograph, tuner and amplifier'1985D0268929'Combined tape deck, phonograph, tuner and amplifier'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1995–2021Patents assigned to SEIKO EPSON CORP (20)· patent assignee history
1995–2007Based in Nagano, JP· patent location history
1999–2021Based in Osaka, JP· patent location history
2003–2021Patents assigned to NHK SPRING CO LTD (16)· patent assignee history
2003–2020Based in Yokohama, JP· patent location history
2012–2015Patents assigned to OKADA HIDEKI (16)· patent assignee history
2012–2021Based in Shiojiri, JP· patent location history
2014–2021Patents assigned to KYOCERA DOCUMENT SOLUTIONS INC (31)· patent assignee history
2015–2020Patents assigned to KAWASAKI HEAVY IND LTD (8)· patent assignee history
2015–2020Based in Kakamigahara, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KYOCERA DOCUMENT SOLUTIONS INC | 31 | 2014–2021 |
| SEIKO EPSON CORP | 20 | 1995–2021 |
| NHK SPRING CO LTD | 16 | 2003–2021 |
| OKADA HIDEKIself | 16 | 2012–2015 |
| KAWASAKI HEAVY IND LTD | 8 | 2015–2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Osaka, JP | 35 | 1999–2021 |
| Yokohama, JP | 13 | 2003–2020 |
| Shiojiri, JP | 12 | 2012–2021 |
| Nagano, JP | 8 | 1995–2007 |
| Kakamigahara, JP | 7 | 2015–2020 |