Company Filing History:

8 out of 21

Sanraku Incorporated

patents

Sanraku-ocean Co., Ltd.

patents

Years Active: 1978-1995

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20 patents (USPTO):Sort by Forward Citations

Abstract keywords

1. 5474923 - Method for the biological preparation of hydroxyvitamin D compounds (1995-12-12),

2. 5322937 - Genes encoding a 3-acylation enzyme for macrolide antibiotics (1994-06-21),

3. 5240849 - DNA coding for enzyme capable of acylating the 4'-position of macrolide (1993-08-31),

4. 5232943 - Antibiotics Mer-AF1032A and Mer-AF1032B (1993-08-03),

5. 5223519 - 4-hydroxypyridine derivatives, useful for treating circulatory diseases (1993-06-29),

6. 5183883 - Conjugate of adriamycin and cyclodextrin (1993-02-02),

7. 5149802 - Process for producing azetidinone derivatives (1992-09-22),

8. 5091370 - Angolamycin derivatives (1992-02-25),

9. 5055259 - Bloodless blood typing training kit (1991-10-08),

10. 4997922 - Anthracycline derivatives (1991-03-05),

11. 4954438 - Process for preparing antibiotics D788-7 (1990-09-04),

12. 4933439 - Tylosin derivatives and processes for producing the same (1990-06-12),

13. 4918172 - Anthracycline antibiotics (1990-04-17),

14. 4612372 - Tylosin derivatives (1986-09-16),

15. 4463171 - Derivatives of macrolide antibiotics (1984-07-31),

Title: The Innovative Journey of Rokuro Okamoto

Introduction

Rokuro Okamoto is a prominent inventor based in Fujisawa, Japan, holding an impressive portfolio of 20 patents. His contributions to the fields of biotechnology and pharmaceuticals have significantly advanced the development of various compounds.

Latest Patents

One of Rokuro Okamoto's latest inventions is a method for the biological preparation of hydroxyvitamin D compounds. This innovative process introduces hydroxyl groups into vitamin D compounds at the 1.alpha.- and/or 25-positions using a cyclodextrin compound, facilitated by a reaction mixture containing a microorganism capable of hydroxylating the vitamin D compound or an enzyme produced from said microorganism. Additionally, he has developed a DNA fragment encoding a 3-acylation enzyme for macrolide antibiotics. This invention highlights a DNA fragment derived from a strain of the genus Streptomyces, demonstrating a size of about 1.8 kb or 3.2 kb, featuring a specific base sequence as depicted in accompanying drawings. This advancement allows for the production of 3-acylated macrolide antibiotics using bacteria that have been transformed with vector plasmids containing inserted DNA fragments.

Career Highlights

Throughout his career, Rokuro Okamoto has also worked with notable companies such as Sanraku Incorporated and the Mercian Corporation. His work has not only led to a significant number of patents but has also contributed to the scientific community's understanding of antibiotic production and vitamin D synthesis.

Collaborations

Rokuro has collaborated with esteemed professionals in his field, including Takeo Yoshioka and Hiroshi Tone. These collaborations have played a crucial role in the development and success of his inventive projects, fostering innovation within the biotechnology industry.

Conclusion

Rokuro Okamoto's legacy as an inventor reflects his commitment to pushing the boundaries of scientific research and innovation. With his substantial number of patents and groundbreaking inventions, he continues to make a lasting impact in the realms of pharmacology and biotechnology.

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