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Inventor

Junichi Yamasaki

Inventor
Kitakyushu, JP

Overview

2→
Patents
1992–2011
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

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

C02Fprimary
C02FTreatment of water, waste water, sewage, or sludge33%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds33%
G11BInformation storage based on relative movement between record carrier and transducer33%
PatentTitleYear
7,943,043'Magnetic field forming device for active water and fluid treatment apparatus using the same'20115,124,424'Polyurethane resin binder for magnetic recording mediums comprising a polycarbonate polyol'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992Patents assigned to NIPPON POLYURETHANE KOGYO KK (1)· patent assignee history
1992Based in Yokohama, JP· patent location history
2011Patents assigned to TOKO INC (1)· patent assignee history
2011Based in Kitakyushu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON POLYURETHANE KOGYO KK11992
TOKO INC12011
Locations
LocationPatentsSpan
Kitakyushu, JP12011
Yokohama, JP11992