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Inventor

Yoshito Hayakawa

Inventor
Sakai, JP

Overview

7→
Patents
1977–2019
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 7 as inventor

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

F21Vprimary
F21VFunctional features or details of lighting devices or systems thereof16%
F21WIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to uses or applications of lighting devices or systems16%
F21SNon-portable lighting devices11%
G07CTime or attendance registers11%
H04WWireless communication networks11%
A01BSoil working in agriculture or forestry5%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them5%
G06FElectric digital data processing5%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes5%
H04LTransmission of digital information, e.g. telegraphic communication5%
PatentTitleYear
10,395,447Data collection device, working machine having data collection device, and system using data collection device201910,194,473Access point device for work machine, communication system for work machine, work machine, and data transmitting method for work machine201910,003,910Data communication system for agricultural machine20184,384,315'Photographic flash device for use with a shadowless lamp for surgical operation'19834,130,858'Lamp-moving device'19784,025,778'Focusing device for sealed type multi-lamp for obtaining shadowless illumination'19774,025,777'Clinical illumination apparatus'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1983Patents assigned to YAMADA SHADOWLESS LAMP CO (4)· patent assignee history
1977Based in Kounosu, JP· patent location history
1978–1983Based in Kohnosu, JP· patent location history
2018–2019Patents assigned to KUBOTA KK (3)· patent assignee history
2018–2019Based in Sakai, JP· patent location history
2019Based in Osaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
YAMADA SHADOWLESS LAMP CO41977–1983
KUBOTA KK32018–2019
Locations
LocationPatentsSpan
Sakai, JP22018–2019
Kohnosu, JP21978–1983
Kounosu, JP21977
Osaka, JP12019