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Fumio Hamada

USPTO Granted Patents = 5

EPO Patents = 1

Average Co-Inventor Count = 2.7

ph-index = 2

Forward Citations = 19(Granted Patents)

Location History:

Kawasaki-shi, Kanagawa JP (1992)
Akita-ken, JP (2011)
Akita, JP (2002 - 2013)

Company Filing History:

Akita University

Dowa Holdings Co., Ltd.

2 out of 832,912

Other

patents

where one patent can have more than one assignee

Years Active: 1992-2013

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5 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8557020 - Compound, metal extractant, and application of the same (2013-10-15),

2. 8500846 - Rare metal extractant (2013-08-06),

3. 8038969 - Rare metal/platinum-group metal extractant and method for extracting rare metals and platinum-group metals (2011-10-18),

4. 6355671 - SULFONATED DERIVATIVES OF CYCLIC PHENOL SULFIDES, PROCESS FOR THE PREPARATION THEREOF, SEPARATING AND RECOVERING AGENTS CONTAINING CYCLIC PHENOL SULFIDES, METHODS FOR SEPARATION AND RECOVERY THEREWITH, AND DRUG COMPOSITIONS CONTAINING THE SULFIDES (2002-03-12),

5. 5146940 - Umbrella cover comprising extensible cylindrical roll (1992-09-15),

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