Koichiro Maekawa

This inventor holds 7 USPTO granted patents and 1 EPO patent. Top assignees: Ngk Insulators, Inc., Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh, Nippon Telegraph and Telephone Corporation. Active years: 1980-1998.

USPTO Granted Patents = 7

% Patents Active = 100.0

EPO Patents = 1 (Patent Applications = 1)

Average Co-Inventor Count = 3.4

ph-index = 7

Forward Citations = 202(Granted Patents)

Company Filing History:

Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh

patents

1 out of 5,300

Nippon Telegraph and Telephone Corporation

patents

4. 1 out of 522

Nippon Telegraph and Telephone Public Corporation

patents

5. 1 out of 66

Patent-Treuhand-Gesellschaft F. Elektrische Gluehlampen Mbh

patents

where one patent can have more than one assignee

Years Active: 1980-1998

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7 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5810635 - High-pressure discharge lamp, method of its manufacture, and sealing (1998-09-22),

2. 5625256 - High-pressure discharge lamp having a ceramic discharge vessel, sintered (1997-04-29),

3. 5592049 - High pressure discharge lamp including directly sintered feedthrough (1997-01-07),

4. 5379361 - Optical fiber connector including L-shaped positioning standard surfaces (1995-01-03),

5. 5315678 - Optical fiber connector (1994-05-24),

6. 5122862 - Ceramic lid for sealing semiconductor element and method of (1992-06-16),

7. 4222978 - Method for producing polycrystalline translucent alumina having an (1980-09-16),

Title: Koichiro Maekawa: Innovator in High-Pressure Discharge Lamp Technology

Introduction

Koichiro Maekawa is a prominent inventor based in Ichinomiya, Japan. He has made significant contributions to the field of high-pressure discharge lamps, holding a total of 7 patents. His innovative work has advanced the technology and efficiency of lighting solutions.

Latest Patents

Maekawa's latest patents include a high-pressure discharge lamp and a method for its manufacture. One notable invention features a ceramic discharge vessel that incorporates a pin-like feedthrough, which is sintered directly into a composite material plug. This design enhances the sealing of the discharge vessel, improving its performance. Another patent involves a ceramic discharge vessel made from a sintered body of optically translucent polycrystalline alumina ceramic. This vessel is doped with specific amounts of magnesium oxide, zirconium dioxide, and yttrium oxide, which significantly improve the loading capacity and operating characteristics of the lamp.

Career Highlights

Throughout his career, Maekawa has worked with notable companies such as NGK Insulators, Inc. and Patent-Treuhand-Gesellschaft für Elektrische Glühlampen mbH. His experience in these organizations has allowed him to refine his expertise in lighting technology and patent development.

Collaborations

Maekawa has collaborated with talented individuals in his field, including Takashi Ota and Masashi Fukuyama. These partnerships have contributed to the advancement of his innovative projects and patents.

Conclusion

Koichiro Maekawa's work in high-pressure discharge lamp technology showcases his dedication to innovation and improvement in lighting solutions. His patents reflect a commitment to enhancing the efficiency and performance of these essential devices.