Company Filing History:

18 out of 16,458

Fuji Photo Film Company, Limited

patents

1 out of 164,108

International Business Machines Corporation

patents

where one patent can have more than one assignee

Years Active: 1980-1997

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18 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5626796 - Light sensitive composition for black matrix, substrate for color (1997-05-06),

2. 5368949 - Magnetic recording medium having specific subbing layers and process for (1994-11-29),

3. 5356726 - Magnetic recording medium comprising a magnetic layer having (1994-10-18),

4. 5336561 - Magnetic recording medium (1994-08-09),

5. 5270109 - Magnetic recording medium having a magnetic layer comprising (1993-12-14),

6. 5254404 - Magnetic recording medium comprising ferromagnetic particles having (1993-10-19),

7. 5244736 - Magnetic recording medium having multiple magnetic layers with specified (1993-09-14),

8. 5165999 - Magnetic recording medium containing a polyurethane resin having a (1992-11-24),

9. 5164259 - Magnetic recording medium having a specified fatty acid hydroxylaluminum (1992-11-17),

10. 5153053 - Magnetic recording medium comprising a lower magnetic layer containing (1992-10-06),

11. 5139866 - Magnetic recording medium (1992-08-18),

12. 5132179 - Magnetic recording medium comprising plural magnetic layers (1992-07-21),

13. 5073439 - Magnetic recording medium comprising a vinyl chloride based resin group (1991-12-17),

14. 5063119 - Magnetic recording medium comprising a fluorine containing oligomer (1991-11-05),

15. 4861674 - Magnetic recording medium (1989-08-29),

Title: Akira Ushimaru: Innovator in Light-Sensitive Compositions and Magnetic Recording Media

Introduction

Akira Ushimaru is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the fields of light-sensitive compositions and magnetic recording media. With a total of 18 patents to his name, Ushimaru's work has had a considerable impact on technology and innovation.

Latest Patents

Ushimaru's latest patents include a light-sensitive composition for forming a black matrix. This composition consists of a photopolymerizable unsaturated compound, a photopolymerization initiator, a binder, and a pigment. The black matrix formed from this composition exhibits desired shading properties without compromising the quality of driving elements. Additionally, he has developed a magnetic recording medium that features specific subbing layers. This medium includes a subbing layer that is soluble in weak alkaline solutions, facilitating the recovery and processing of magnetic recording media.

Career Highlights

Throughout his career, Ushimaru has worked with notable companies such as Fuji Photo Film Company, Limited and IBM. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in his field.

Collaborations

Ushimaru has collaborated with esteemed colleagues, including Hiroshi Hashimoto and Yasuo Nishikawa. These partnerships have fostered a collaborative environment that has led to the development of innovative technologies.

Conclusion

Akira Ushimaru's contributions to light-sensitive compositions and magnetic recording media highlight his role as a leading inventor in Japan. His patents reflect a commitment to advancing technology and improving existing processes.

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