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Inventor

Takao Chiba

Inventor
Tokyo, JP

Overview

9→
Patents
1983–2021
Patent span
Physics
Primary field (CPC G)

Patents· 9 as inventor

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

C30Bprimary
C30BSingle-crystal growth15%
F24FAir-conditioning15%
G03GElectrography15%
G06FElectric digital data processing15%
Y10TTechnical subjects covered by former us classification15%
C09KMaterials for miscellaneous applications, not provided for elsewhere8%
H03HImpedance networks, e.g. resonant circuits8%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution8%
PatentTitleYear
11,112,973Computer system and data management method202110,983,720System for converting data protection levels of storage nodes202110,901,336Positively-chargeable toner for developing electrostatic images and method for producing the same202110,901,335Toner for developing electrostatic images20216,773,503'Method of heat-treating fluoride crystal, method of producing optical part, and optical apparatus'20046,702,891'Method of heat treating fluoride crystal'20045,849,213'Cooling and heating medium for ice-storage system'19985,103,869'Piezoelectric on-off valve for air conditioning'19924,406,964'Acoustic surface wave transducer with improved inband frequency characteristics'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983Patents assigned to JAPAN BROADCASTING CORP (1)· patent assignee history
1983Patents assigned to OKI ELECTRIC IND CO LTD (1)· patent assignee history
1983–2021Based in Tokyo, JP· patent location history
2004Patents assigned to CANON KK (2)· patent assignee history
2004Based in Ryugasaki, JP· patent location history
2021Patents assigned to HITACHI LTD (2)· patent assignee history
2021Patents assigned to ZEON CORP (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CANON KK22004
HITACHI LTD22021
ZEON CORP22021
JAPAN BROADCASTING CORP11983
OKI ELECTRIC IND CO LTD11983
Locations
LocationPatentsSpan
Tokyo, JP71983–2021
Ryugasaki, JP22004