Inventor

Hirofumi Yanagi

Inventor

Tokyo, JP

Overview

1977–2014

Patent span

Mechanical engineering

Primary field (CPC F)

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

H03Hprimary

H03HImpedance networks, e.g. resonant circuits29%

F25BRefrigeration machines, plants or systems14%

Y10TTechnical subjects covered by former us classification14%

A47FSpecial furniture, fittings, or accessories for shops, storehouses, bars, restaurants or the like7%

F25DRefrigerators7%

F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact7%

F28FDetails of heat-exchange and heat-transfer apparatus, of general application7%

G04FTime-interval measuring7%

H03BGeneration of oscillations, directly or by frequency-changing, by circuits employing active elements which operate in a non-switching manner7%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1977–1987Patents assigned to SEIKOSHA KK (5)· patent assignee history

1977–1987Based in Tokyo, JP· patent location history

2012–2014Patents assigned to SANYO ELECTRIC CO (2)· patent assignee history

2012–2014Patents assigned to YANAGI HIROFUMI (2)· patent assignee history

2012Patents assigned to HASEGAWA SETSU (1)· patent assignee history

2012Patents assigned to INOUE TAKASHI (1)· patent assignee history

2012Based in Moriguchi, JP· patent location history

2014Based in Saitama, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations