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Inventor

Kaoru Hamada

Inventor
Tokyo, JP

Overview

38→
Patents
1981–2020
Patent span
Performing operations
Primary field (CPC B)

Patents· 38 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B41Mprimary
B41MPrinting, duplicating, marking, or copying processes52%
H04NPictorial communication, e.g. television16%
G03GElectrography4%
G06FElectric digital data processing4%
A41FGarment fastenings2%
B01FMixing, e.g. dissolving, emulsifying or dispersing2%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry2%
B41JTypewriters2%
C07CAcyclic or carbocyclic compounds2%
C10GCracking hydrocarbon oils2%
PatentTitleYear
10,536,599Original reading apparatus202010,477,061Image forming apparatus with two-sided copying and variable image data transfer clock frequency201910,447,890Image reading apparatus with shading correction201910,447,876Image reading apparatus201910,289,358Image forming apparatus that improves FCOT201910,261,732Image forming apparatus having double-sided printing and control method of the same201910,154,155Image reading apparatus capable of determining opening-closing state of original conveyance device and image forming apparatus equipped with image reading apparatus201810,148,851Image reading apparatus and image reading method20187,799,963'Cracking tube having helical fins'20107,655,287'Inkjet recording medium'20107,476,642'Thermally sensitive recording medium'20097,384,891'Thermal recording medium'20087,378,374'Thermally sensitive recording medium'20087,312,176'Thermally sensitive recording medium'20077,232,791'Multicolored thermally recording medium'20076,677,275'Thermal recording material'20046,645,910'Thermally sensitive recording medium'20036,579,828'Multi chromatic thermally sensitive recording medium'20036,551,961'Thermal recording material'20036,432,874'Thermally sensitive recording medium'20026,410,479'Thermally sensitive recording medium'20026,407,036'Thermal recording material'20026,385,777'Clothes-adjusting apparatus'20026,303,540'Thermally sensitive recording medium'20016,284,707'Thermally sensitive recording medium'20016,284,706'Thermally sensitive recording medium'20016,258,747'Thermally sensitive recording medium'20016,093,678'Spontaneously color changing type thermal sensitive recording medium'20005,811,368'Thermal sensitive recording medium'19985,811,369'Thermal recording medium'19985,753,586'Thermal sensitive recording sheet'19985,733,843'Thermal sensitive recording sheet'19985,711,163'Heat pump apparatus'19985,710,094'Reversible multi-color thermal recording medium'19985,707,778'Optical recording medium'19985,665,675'Aminobenzenesulfonamide derivative and recording medium using the same'19975,661,100'Urea (thiourea) derivative and thermal recording sheet using the same'19974,306,497'Dot matrix type printer'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981Patents assigned to NIPPON ELECTRIC CO (1)· patent assignee history
1981–2010Based in Tokyo, JP· patent location history
1997–2010Patents assigned to JUJO PAPER CO LTD (25)· patent assignee history
1997–2003Based in Shinjuku-ku, JP· patent location history
1998–2010Patents assigned to KUBOTA KK (2)· patent assignee history
2002Based in Yao, JP· patent location history
2003Patents assigned to IPPOSHA OIL IND CO LTD (1)· patent assignee history
2010Based in Sanda, JP· patent location history
2018–2020Patents assigned to CANON KK (8)· patent assignee history
2018–2020Based in Nagareyama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
JUJO PAPER CO LTD251997–2010
CANON KK82018–2020
KUBOTA KK21998–2010
IPPOSHA OIL IND CO LTD12003
NIPPON ELECTRIC CO11981
Locations
LocationPatentsSpan
Tokyo, JP161981–2010
Shinjuku-ku, JP101997–2003
Nagareyama, JP82018–2020
Sanda, JP12010
Yao, JP12002