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For the Inventor, By the Inventor

Saitama, Japan

Tadao Shibanuma

USPTO Granted Patents = 12

Average Co-Inventor Count = 6.6

ph-index = 7

Forward Citations = 143(Granted Patents)


Location History:

  • Asaka, JA (1976)
  • Asaki, JA (1978)
  • Asaka, JP (1980 - 1983)
  • Saitama, JP (1984 - 1992)

Company Filing History:

goldMedal12 out of 329 
 
Yamanouchi Pharmaceutical Company Ltd.
 patents

Years Active: 1976-1992

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12 patents (USPTO):Explore Patents
1. 5081116 - Cephalosporin derivatives (1992-01-14),
2. 4845211 - Amino-3-substituted-methyl-3-cephem-4-carboxylic acid and lower (1989-07-04),
3. 4699980 - Process for preparing 3-substituted-methyl-3-cephem derivatives (1987-10-13),
4. 4690921 - Cephalosporin compounds and salts thereof (1987-09-01),
5. 4608373 - Cephem compounds (1986-08-26),
6. 4474779 - Cephalosporin compounds (1984-10-02),
7. 4414153 - 1,3-Dithietane-2-carboxylic acid penicillin and cephalosporin derivatives (1983-11-08),
8. 4198339 - 1,3-Dithietane-2-carboxylic acids and the preparation thereof (1980-04-15),
9. 4068074 - Cephalosporin derivatives having at the 3-position of the cephem ring a (1978-01-10),
10. 3991111 - N-alkenyltetracycline derivatives (1976-11-09),
11. 3985758 - 1,4-Dihydropyridine derivatives (1976-10-12),
12. 3951962 - Novel N-alkenyltetracycline derivatives (1976-04-20),

Title: Tadao Shibanuma: Innovator in Antibacterial Agents

Introduction

Tadao Shibanuma is a prominent inventor based in Saitama, Japan. He has made significant contributions to the field of pharmaceuticals, particularly in the development of antibacterial agents. With a total of 12 patents to his name, Shibanuma's work has had a considerable impact on medical science.

Latest Patents

Among his latest patents, Shibanuma has developed a series of cephalosporin derivatives. One notable patent includes a 7-[2-(2-amino-4-thiazolyl)-2-(hydroxyimino)-acetamido]-3-(1,3-dithiolan-2-yl)-3-cephem-4-carboxylic acid derivative. This compound can be represented by a specific general formula, wherein A can represent various groups such as a hydrogen atom or different acetoxyethyl groups. Additionally, he has worked on amino-3-substituted-methyl-3-cephem-4-carboxylic acids and their lower alkylsily derivatives. These compounds are valuable intermediates in the preparation of new antibacterial agents, and he has devised a new process for their preparation.

Career Highlights

Shibanuma is currently associated with Yamanouchi Pharmaceutical Company Ltd., where he continues to innovate in the pharmaceutical sector. His work has been instrumental in advancing the development of effective antibacterial treatments.

Collaborations

Throughout his career, Tadao Shibanuma has collaborated with notable colleagues, including Noriaki Nagano and Masaru Iwanami. These collaborations have further enriched his research and development efforts.

Conclusion

Tadao Shibanuma's contributions to the field of antibacterial agents through his innovative patents and collaborations highlight his importance as an inventor. His work continues to influence the pharmaceutical industry and improve healthcare outcomes.

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