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Inventor

Hirofumi Hayama

Inventor
Castro Valley, CA, US

Overview

2→
Patents
1998–2021
Patent span
Physics
Primary field (CPC G)

Patents· 2 as inventor

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

F24Fprimary
F24FAir-conditioning20%
G01CMeasuring distances, levels or bearings20%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes20%
H05KPrinted circuits20%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications20%
PatentTitleYear
11,107,019Arranging a transport service for multiple users20215,718,628'Air conditioning method in machine room having forced air-cooling equipment housed therein'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998Patents assigned to NIPPON TELEGRAPH & TELEPHONE (1)· patent assignee history
1998Patents assigned to NTT POWER & BUILDING (1)· patent assignee history
1998Based in Tokyo, JP· patent location history
2021Patents assigned to UBER TECHNOLOGIES INC (1)· patent assignee history
2021Based in Castro Valley, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON TELEGRAPH & TELEPHONE11998
NTT POWER & BUILDING11998
UBER TECHNOLOGIES INC12021
Locations
LocationPatentsSpan
Castro Valley, California, US12021
Tokyo, JP11998