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Kenzo Naito

This inventor holds 13 USPTO granted patents. Top assignees: Takeda Chemical Industries, Inc., Lederle (Japan), Ltd.. Active years: 1978-1993.

USPTO Granted Patents = 13

% Patents Active = 100.0

Average Co-Inventor Count = 2.7

ph-index = 4

Forward Citations = 45(Granted Patents)

Location History:

Soraku, JP (1987 - 1990)
Kyoto, JP (1978 - 1993)

Company Filing History:

13 out of 1,858

Takeda Chemical Industries, Inc.

Lederle (Japan), Ltd.

where one patent can have more than one assignee

Years Active: 1978-1993

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13 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5183929 - Method for production of T-butyl 3-oxobutyrates and their use (1993-02-02),

2. 5162522 - Method for producing cephem compounds (1992-11-10),

3. 5109131 - Method for production of t-butyl 3-oxobutyrates and their use (1992-04-28),

4. 4980464 - Method for production of cephalosporin compounds (1990-12-25),

5. 4927964 - Method for production of 2-oxyimino-3-oxobutyric acids (1990-05-22),

6. 4908444 - Method of producing cephem compounds (1990-03-13),

7. 4845257 - 4-halogeno-2-oxyimino-3-oxobutyric acids and derivatives (1989-07-04),

8. 4801703 - Method for production of cephalosporin compounds (1989-01-31),

9. 4692519 - Crystals of sodium cephemcarboxylate (1987-09-08),

10. 4642365 - Method for production of 1,3,2-dioxaphospholes (1987-02-10),

11. 4446318 - Method for producing 7-aminocephem compounds (1984-05-01),

12. 4146710 - Solid cephalosporin salt (1979-03-27),

13. 4122258 - Process for producing desacetoxycephalosporin derivatives by heating a (1978-10-24),

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