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For the Inventor, By the Inventor

Yokohama, Japan

Yutaka Ohtsu

USPTO Granted Patents = 16


Average Co-Inventor Count = 5.6

ph-index = 10

Forward Citations = 295(Granted Patents)


Company Filing History:

goldMedal16 out of 1,007 
 
Shiseido Company, Limited
 patents

Years Active: 1988-2008

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16 patents (USPTO):Explore Patents
1. 7329386 - Column packing material and method for producing the same (2008-02-12),
2. 6482867 - Polymer packing material for liquid chromatography and a producing method thereof (2002-11-19),
3. 6360589 - Liquid chromatography and column packing material (2002-03-26),
4. 6316647 - Cation-exchanged clay mineral, packing material for chromatography using the same and method of producing the same (2001-11-13),
5. 6063283 - Method for analyzing a sample by using a liquid chromatograph (2000-05-16),
6. 5990182 - Polymer packing material for liquid chromatography and a producing (1999-11-23),
7. 5738783 - Liquid chromatograph having a micro- and semi-micro column (1998-04-14),
8. 5672422 - Packing material for column and process for production thereof (1997-09-30),
9. 5318848 - Modified silica gel in chromatography packing material (1994-06-07),
10. 5203991 - Packing material for liquid chromatography (1993-04-20),
11. 5145578 - Packing material for liquid chromatography (1992-09-08),
12. 5135649 - Column packing material with both hydrophobic and hydrophilic groups and (1992-08-04),
13. 4882225 - Modified powder or particulate material (1989-11-21),
14. 4818614 - Modified powder (1989-04-04),
15. 4801445 - Cosmetic compositions containing modified powder or particulate material (1989-01-31),

Title: Yutaka Ohtsu: Innovator in Column Packing Materials

Introduction

Yutaka Ohtsu is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of chromatography, particularly in the development of column packing materials. With a total of 16 patents to his name, Ohtsu's work has had a substantial impact on liquid chromatography technologies.

Latest Patents

Ohtsu's latest patents include innovative advancements in column packing materials and methods for their production. One of his notable inventions is a column packing material that comprises specific components designed to enhance performance. Additionally, he has developed a polymer packing material suitable for liquid chromatography, which features a polymer particle based on a styrene skeleton with a monodispersed particle distribution. This polymer packing material is produced through a hydrophilic treatment process and subsequent chemical modifications to introduce hydrophobic groups.

Career Highlights

Yutaka Ohtsu is currently associated with Shiseido Company, Limited, where he continues to innovate in the field of chromatography. His expertise and dedication to research have led to advancements that benefit various applications in the industry.

Collaborations

Ohtsu has collaborated with notable colleagues, including Taketoshi Kanda and Michihiro Yamaguchi. Their combined efforts have contributed to the development of cutting-edge technologies in their field.

Conclusion

Yutaka Ohtsu's contributions to the field of chromatography through his patents and collaborations highlight his role as a leading inventor. His work continues to influence advancements in liquid chromatography, showcasing the importance of innovation in scientific research.

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