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Inventor

Hajime Nakazawa

Inventor
Kishiwada, JP

Overview

6→
Patents
1977–2021
Patent span
Performing operations
Primary field (CPC B)

Patents· 6 as inventor

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

A61Mprimary
A61MDevices for introducing media into, or onto, the body25%
B03DFlotation17%
B03BSeparating solid materials using liquids or using pneumatic tables or jigs8%
B03CMagnetic or electrostatic separation of solid materials from solid materials or fluids8%
H01BCables8%
H01LSemiconductor devices8%
H05BElectric heating8%
H10KOrganic electric solid-state devices8%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
10,971,695Multilayer reflection electrode film, multilayer reflection electrode pattern, and method of forming multilayer reflection electrode pattern20217,635,359'Receptacle for use with a medical suction device'20097,611,496'Liquid medicine-measuring device for liquid medicine-injecting device'20096,270,483'Liquid discharge regulator and liquid feeder equipped with the same'20014,663,279'Method of beneficiation of complex sulfide ores'19874,022,686'Flotation process for copper ores and copper smelter slags'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977Patents assigned to SUMITOMO METAL MINING CO LIMIT (1)· patent assignee history
1977Based in Ichikawa, JP· patent location history
1987Patents assigned to SUMITOMO METAL MINING CO (1)· patent assignee history
1987Based in Niihama, JP· patent location history
2001–2009Patents assigned to DAIKEN IKI KK (3)· patent assignee history
2001Based in Osaka, JP· patent location history
2009Based in Kishiwada, JP· patent location history
2021Patents assigned to MITSUBISHI MATERIALS CORP (1)· patent assignee history
2021Based in Naka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DAIKEN IKI KK32001–2009
MITSUBISHI MATERIALS CORP12021
SUMITOMO METAL MINING CO11987
SUMITOMO METAL MINING CO LIMIT11977
Locations
LocationPatentsSpan
Kishiwada, JP22009
Naka, JP12021
Osaka, JP12001
Niihama, JP11987
Ichikawa, JP11977