Company Filing History:

5 out of 5,966

Shin-etsu Chemical Co., Ltd.

patents

3 out of 832,680

Other

patents

Years Active: 2001-2004

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8 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6701752 - Synthesized silica glass optical member and method for manufacturing the same (2004-03-09),

2. 6681074 - Method for producing base material for optical fiber having deformed first clad, base material for optical fiber and optical fiber (2004-01-20),

3. 6615614 - Method for preparing optical waveguide substrate (2003-09-09),

4. 6564585 - Method for producing a second-order nonlinear glass material (2003-05-20),

5. 6436728 - Method for making an optical waveguide substrate (2002-08-20),

6. 6402973 - Preparation of silicon substrate (2002-06-11),

7. 6380109 - Second-order nonlinear glass material (2002-04-30),

8. 6301412 - Apparatus and method for making multi-branching optical coupler (2001-10-09),

Title: Seiki Ejima: Innovator in Optical Materials

Introduction

Seiki Ejima is a prominent inventor based in Annaka, Japan, known for his significant contributions to the field of optical materials. With a total of eight patents to his name, he has made remarkable advancements in the manufacturing of silica glass optical members and optical fibers.

Latest Patents

Ejima's latest patents include a method for manufacturing a synthesized silica glass optical member. This method involves providing a porous silica glass body, heating it in an atmosphere containing hydrogen or oxygen, and sintering it in an atmosphere containing a fluorine compound. Additionally, he has developed a method for producing a base material for optical fiber that features a deformed first clad. This innovative method aims to prevent breakages or cracks during the deposition of porous glass fine particles, resulting in a defect-free optical fiber.

Career Highlights

Throughout his career, Seiki Ejima has worked with notable companies, including Shin-Etsu Chemical Co., Ltd. His work has significantly impacted the optical materials industry, showcasing his expertise and innovative spirit.

Collaborations

Ejima has collaborated with esteemed colleagues such as Shinji Makikawa and Jun Abe, contributing to various projects that enhance the field of optical technology.

Conclusion

Seiki Ejima's contributions to optical materials and his innovative patents highlight his role as a leading inventor in the industry. His work continues to influence advancements in optical technology, making a lasting impact on the field.

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