Company Filing History:

16 out of 1,587

Teijin Limited

patents

1 out of 12,160

Bayer Aktiengesellschaft

patents

2 out of 832,843

Other

patents

where one patent can have more than one assignee

Years Active: 1976-2005

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18 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6881453 - Optical film (2005-04-19),

2. 6476153 - Process for producing hydrogenated &agr;-olefin-dicyclopentadiene copolymer, method for molding the same and optical material (2002-11-05),

3. 6388032 - Cyclic olefin polymer containing little catalyst residue (2002-05-14),

4. 6232407 - Process for producing hydrogenated &agr;-olefin-dicyclopentadiene copolymer, method for molding the same and optical material (2001-05-15),

5. 6191243 - &agr;-olefin-cycloolefin copolymers and process for their production (2001-02-20),

6. 5958305 - Film of aromatic polyethersulfone, process for the production thereof, (1999-09-28),

7. 5759449 - Film of aromatic polyethersulfone, process for the production thereof, (1998-06-02),

8. 5695694 - Method of producing an acylated cellulose film (1997-12-09),

9. 5645766 - Film of aromatic polyethersulfone process for the production thereof and (1997-07-08),

10. 5561180 - Polycarbonate film for optical purposes and a production process thereof (1996-10-01),

11. 5478518 - Polycarbonate film for optical purposes and a production process thereof (1995-12-26),

12. 5268478 - Sulfur compound-coordinate bonded organic coloring matter, compositions (1993-12-07),

13. 5196147 - Organic nonlinear optical substance (1993-03-23),

14. 5009986 - Naphthalocyanine based compound and optical recording medium containing (1991-04-23),

15. 4495343 - Visible light-sensitive polyester polymer and visible light-sensitive (1985-01-22),

Title: The Innovative Mind of Kaoru Iwata

Introduction

Kaoru Iwata, an accomplished inventor based in Hino, Japan, has made significant strides in the realm of optical materials, holding a total of 18 patents to his name. His work has not only advanced technology in various fields but also laid the groundwork for future innovations.

Latest Patents

Among his latest contributions is an innovative optical film that boasts a unique composition as a single polymer film. This film demonstrates a smaller phase difference as the wavelength decreases, crafted from an olefin-based polymer featuring an alicyclic group in its side chain. The alicyclic group constitutes 60 to 90 wt % of the polymer, and it meets specific phase difference criteria at wavelengths of 450 nm and 550 nm. Additionally, Iwata developed a process for producing hydrogenated α-olefin-dicyclopentadiene copolymer, which involves the distillation of unreacted compounds in a specialized hydrocarbon solvent. He also proposed methods for molding this copolymer into optical materials, showcasing his commitment to enhancing material science.

Career Highlights

Throughout his professional journey, Kaoru Iwata has excelled in his roles, particularly during his time at Teijin Limited. His contributions to the company and the broader field of optical materials have been groundbreaking, solidifying his position as a leading inventor in this domain.

Collaborations

Iwata has collaborated with notable peers, including Hideaki Nitta and Takeshi Sasaki. These partnerships have propelled his innovative projects forward, fostering a collaborative spirit that is essential for technological advancement.

Conclusion

Kaoru Iwata's work in the field of optical materials underscores the importance of innovation and collaboration in driving technological progress. With his impressive portfolio of patents and a dedication to his craft, Iwata continues to inspire future generations of inventors and researchers.

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