Company Filing History:

14 out of 4,270

Daikin Industries, Ltd.

patents

10 out of 213

Daikin Kogyo Co., Ltd.

patents

Years Active: 1978-1993

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24 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5270090 - Semiconductor device coated with a fluorena-containing polyiimide and a (1993-12-14),

2. 5264598 - Fluorine-containing aromatic compound, process for preparing the same (1993-11-23),

3. 5166365 - Fluorine-containing aromatic compound, process for preparing the same (1992-11-24),

4. 4973742 - Halogen-containing polyether (1990-11-27),

5. 4946972 - Process for distillation of 2,2,3,3-tetrafluorooxetane (1990-08-07),

6. 4946935 - Fluorine-containing aromatic compound, process for preparing the same (1990-08-07),

7. 4908460 - Process for purification of 2,2,3,3-tetrafluorooxetane (1990-03-13),

8. 4904417 - Fluorine-containing polyether and process for preparing the same (1990-02-27),

9. 4886581 - Removal of hydrogen fluoride from 2,2,3,3-tetra-fluorooxetane (1989-12-12),

10. 4845268 - Halogen-containing polyether (1989-07-04),

11. 4825014 - Process for preparing chlorotrifluoromethylbenzene (1989-04-25),

12. 4739059 - Fluorine-containing amine amides (1988-04-19),

13. 4719052 - 2,2-difluoropropionic acid derivatives (1988-01-12),

14. 4709060 - Substituted trifluorooxetanes (1987-11-24),

15. 4683289 - Novel fluorine-containing polyaminoamide and preparation thereof from (1987-07-28),

Title: Yohnosuke Ohsaka: A Pioneer in Fluorine-Containing Compounds

Introduction

Yohnosuke Ohsaka, based in Osaka, Japan, is an accomplished inventor with a remarkable portfolio comprising 24 patents. His innovative contributions to the field of semiconductor and fluorine-containing compounds have earned him recognition in the technical community.

Latest Patents

Among his latest inventions are notable patents that focus on semiconductor devices coated with fluorene-containing polyimides as well as a series of novel fluorine-containing aromatic compounds. These compounds are characterized by specific molecular structures that include perfluoroalkyl groups and a range of integer parameters. These inventions not only advance material science but also contribute to the development of new applications in electronics.

Career Highlights

Yohnosuke Ohsaka has had a distinguished career, with significant tenures at leading companies such as Daikin Industries, Ltd. and Daikin Kogyo Co., Ltd. His work during these periods has been pivotal in advancing the technologies related to fluorine chemistry and its applications.

Collaborations

Throughout his career, Ohsaka has collaborated with notable colleagues including Takashi Tohzuka and Shoji Takaki. These collaborations have facilitated the exchange of ideas and innovations, further driving advancements in the field.

Conclusion

In summary, Yohnosuke Ohsaka stands out as a key inventor in the domain of semiconductor technology and fluorine chemistry. His inventions continue to impact various industries, showcasing the importance of innovation in driving technological advancement. Ohsaka’s dedication to his craft inspires both current and future generations of inventors.

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