Company Filing History:

11 out of 220

Toa Nenryo Kogyo Kabushiki Kaisha

patents

Toa Nenryo Kogyo, K. K.

patents

4. 1 out of 342

Nippon Paper Industries Co., Ltd.

patents

5. 1 out of 2,245

Mitsubishi Gas Chemical Company, Inc.

patents

where one patent can have more than one assignee

Years Active: 1980-1997

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15 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5695730 - Process for preparing silicic acid hydrate (1997-12-09),

2. 5540905 - Optically anisotropic pitch for manufacturing high compressive strength (1996-07-30),

3. 5395607 - High compressive strength pitch based carbon fiber (1995-03-07),

4. 5114697 - High strength, high modulus pitch-based carbon fiber (1992-05-19),

5. 4895712 - Process for producing carbon fiber and graphite fiber (1990-01-23),

6. 4822587 - High modulus pitch-based carbon fiber and method for preparing same (1989-04-18),

7. 4655902 - Optically anisotropic carbonaceous pitch (1987-04-07),

8. 4601813 - Process for producing optically anisotropic carbonaceous pitch (1986-07-22),

9. 4534850 - Optically antisotropic carbonaceous pitch (1985-08-13),

10. 4533461 - Process for producing mesophase pitch (1985-08-06),

11. 4454020 - Process for producing a homogeneous low softening point, optically (1984-06-12),

12. 4454019 - Process for producing optically anisotropic carbonaceous pitch (1984-06-12),

13. 4422924 - Solvent dewaxing waxy hydrocarbons using an alpha olefin polymer-olefin (1983-12-27),

14. 4354003 - Solvent dewaxing waxy hydrocarbons using an .alpha.-olefin (1982-10-12),

15. 4192733 - Solvent dewaxing waxy hydrocarbon oils using dewaxing aid (1980-03-11),

Title: Tsutomu Naito: Innovator in Silicic Acid and Carbon Fiber Technologies

Introduction

Tsutomu Naito is a prominent inventor based in Saitama, Japan. He has made significant contributions to the fields of silicic acid and carbon fiber technologies. With a total of 15 patents to his name, Naito's work has had a lasting impact on various industrial applications.

Latest Patents

Naito's latest patents include a process for preparing silicic acid hydrate. This invention provides silicic acid hydrate with a large pore volume and tiny particle diameters. The process involves neutralizing an aqueous solution of sodium silicate with a mineral acid, resulting in silicic acid hydrate with specific particle properties. Another notable patent is for an optically anisotropic pitch, which is particularly suited for manufacturing high compressive strength carbon fibers. This pitch is designed for stable production and satisfactory productivity, contributing to advancements in carbon fiber technology.

Career Highlights

Throughout his career, Tsutomu Naito has worked with notable companies such as Toa Nenryo Kogyo and Tonen Corporation. His experience in these organizations has allowed him to develop innovative solutions that address industry needs. Naito's expertise in materials science has positioned him as a key figure in the development of advanced materials.

Collaborations

Naito has collaborated with several professionals in his field, including Takayuki Izumi and Kikuji Komine. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Tsutomu Naito's contributions to silicic acid and carbon fiber technologies highlight his innovative spirit and dedication to advancing material science. His patents and collaborations continue to influence the industry, showcasing the importance of innovation in driving progress.

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