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Masahide Hirai

USPTO Granted Patents = 7

Average Co-Inventor Count = 3.5

ph-index = 4

Forward Citations = 46(Granted Patents)

Location History:

Uji, JA (1976 - 1977)
Kyoto, JP (1980 - 1982)
Kusatsu, JP (1985)

Company Filing History:

Dowa Mining Co., Ltd.

where one patent can have more than one assignee

Years Active: 1976-1985

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7 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4517096 - Method of selective separation and concentration of gallium and/or (1985-05-14),

2. 4323458 - Process for removing heavy-metal ions from aqueous solution (1982-04-06),

3. 4266045 - Etherified phenolic chelate resin, process for its production, and (1981-05-05),

4. 4250031 - Phenolic chelate resin and method of adsorption treatment (1981-02-10),

5. 4197391 - Phenolic chelate resin and method of adsorption treatment (1980-04-08),

6. 4028284 - Phenolic chelate resin (1977-06-07),

7. 3936399 - Process of producing phenolic chelate resin using iminodiacetic acid (1976-02-03),

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