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For the Inventor, By the Inventor

Tsukuba, Japan

Masao Kato

USPTO Granted Patents = 19

Average Co-Inventor Count = 5.1

ph-index = 7

Forward Citations = 310(Granted Patents)


Location History:

  • Sakuramura, JP (1983)
  • Ibaraki, JP (1986 - 2000)
  • Tsukuba, JP (1991 - 2003)

Company Filing History:

goldMedal7 out of 1,037 
 
Agency of Industrial Science and Technology
 patents
silverMedal6 out of 348 
 
Ministry of International Trade & Industry
 patents
bronzeMedal2 out of 255 
 
Research Development Corporation of Japan
 patents
4. 2 out of 23 
 
Nanocarrier Co., Ltd.
 patents
5. 2 out of 373 
 
Japan Science and Technology Corporation
 patents
6. 1 out of 1 
 
Kazunori Kataoka
 patent
7. 1 out of 4 
 
K. K. Vayu
 patents
8. 1 out of 73 
 
Japan As Represented by Director General of Agency of Industrial Science
 patents
9. 1 out of 386 
 
Toda Kogyo Corporation
 patents
10. 3 out of 832,680 
Other
 patents
where one patent can have more than one assignee

Years Active: 1983-2003

where 'Filed Patents' based on already Granted Patents

19 patents (USPTO):
1. 6590043 - Methacrylic polymer having a terminal functional group and composition thereof (2003-07-08),
2. 6388041 - Polyoxyethylene derivatives having optionally protected amino group at one end and process for producing the same (2002-05-14),
3. 6294614 - Modified polymers containing poly(2-hydroxyethyl(meth)acrylate segment in the molecule (2001-09-25),
4. 6274561 - Antitumor agents comprising as the principal compounds containing silicon and nitrogen (2001-08-14),
5. 6090317 - Polyoxyethylene having a sugar on one end and a different functional (2000-07-18),
6. 6013748 - Aromatic ester compound and second-order non-linear optical material (2000-01-11),
7. 5973069 - Polyethylene oxides having saccharide residue at one end and different (1999-10-26),
8. 5929177 - Block polymer having functional groups at both ends (1999-07-27),
9. 5925720 - Heterotelechelic block copolymers and process for producing the same (1999-07-20),
10. 5910485 - Antitumor agents comprising as the principal compounds containing (1999-06-08),
11. 5679765 - Polyether having heterofunctional groups at both ends, process for the (1997-10-21),
12. 5483008 - Polyether having heterofunctional groups at both ends, process for the (1996-01-09),
13. 5196586 - Polydiphenyldiacetylenes (1993-03-23),
14. 5057248 - Method for production of polymeric nonlinear optical material (1991-10-15),
15. 5003569 - Method using x-rays to determine thickness of organic films (1991-03-26),

Title: Innovations by Masao Kato: A Glimpse into His Contributions to Polymer Science

Introduction

Masao Kato, an esteemed inventor located in Tsukuba, Japan, has made significant contributions to the field of polymer science, holding an impressive total of 19 patents. His innovative work has paved the way for advancements in polymerization processes and functional materials, showcasing his dedication to research and development in this area.

Latest Patents

Kato's recent patents exemplify his expertise in creating innovative polymer compositions. One such patent is for a methacrylic polymer having a terminal functional group and its composition. This invention provides a polymer synthesized from a mixture of a methacrylic ester monomer containing an electron-donating group, along with a potential lactone or lactide, using an alkali metal alcoholate as a polymerization initiator. The functional groups resulting from this process enable the polymer to perform a diverse range of functions. Another notable patent involves polyoxyethylene derivatives with an optionally protected amino group at one end, along with a process for their production. These patents highlight Kato's ability to merge functional design with polymer chemistry, offering new possibilities in the field.

Career Highlights

Throughout his illustrious career, Masao Kato has worked in prestigious organizations such as the Agency of Industrial Science and Technology and the Ministry of International Trade and Industry. His roles in these institutions have allowed him to push the boundaries of polymer technology and contribute to significant advancements in industrial applications.

Collaborations

Kato's innovative journey has been enriched through collaborations with notable peers like Yukio Nagasaki and Hachiro Nakanishi. These partnerships have fostered an environment for groundbreaking research and development, allowing for the exchange of ideas and expertise that has further propelled Kato's inventive endeavors.

Conclusion

Masao Kato's contributions to the field of polymer science through his patents and collaborations underscore his role as a significant innovator. With a focus on functional polymers and their applications, Kato continues to inspire future generations of scientists and inventors in the realm of materials science. His work not only enhances industrial practices but also broadens the horizons of polymer technology for various applications.

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