For the Inventor, By the Inventor

Enter assignee name

Tokyo Tungsten Co., Ltd.

USPTO Granted Patents = 11

Forward Citations = 96

Loading Chart...

Loading Chart...

25 inventors (with patents filed for the assignee):

Tadashi Arikawa (5 out of 9 patents)

Akira Ichida (5 out of 6 patents)

Mitsuo Osada (5 out of 7 patents)

4. Norio Hirayama (4 out of 6 patents)

5. Hidetoshi Maesato (4 out of 5 patents)

6. Kiyoshi Asai (4 out of 4 patents)

7. Hisanori Ohara (3 out of 15 patents)

8. Yoshinari Amano (3 out of 6 patents)

9. Shigehiko Takaoka (3 out of 3 patents)

10. Yasuhiro Katoh (2 out of 19 patents)

11. Kenji Sakimae (2 out of 2 patents)

12. Hiromu Kawai (2 out of 4 patents)

13. Hiroshi Hasegawa (1 out of 112 patents)

14. Takehiko Hayashi (1 out of 6 patents)

15. Tomohiro Takida (1 out of 4 patents)

11 patents: Sort by Forward Citations

1. 6926861 - Semiconductor package and method for producing heat-radiating substrate for it (2005-08-09),

2. 6693353 - Semiconductor package and method for producing heat-radiating substrate for it (2004-02-17),

3. 6595821 - Rotary anode for X-ray tube comprising an Mo-containing layer and a W-containing layer laminated to each other and method of producing the same (2003-07-22),

4. 6475429 - Heat sink substrate consisting essentially of copper and molybdenum and method of manufacturing the same (2002-11-05),

5. 6271585 - Heat sink substrate consisting essentially of copper and molybdenum and method of manufacturing the same (2001-08-07),

6. 5928976 - Composite carbide powder used for cemented carbide and method of (1999-07-27),

7. 5508118 - Rotary anode for x-ray tube (1996-04-16),

8. 5493153 - Plastic-packaged semiconductor device having a heat sink matched with a (1996-02-20),

9. 5352489 - Method for manufacturing a rotary anode for X-ray tube (1994-10-04),

10. 5259015 - Rotary anode for X-ray tube and method for manufacturing the same (1993-11-02),

11. 5028756 - Electrode wire for electric spark cutting (1991-07-02),

Tokyo Tungsten Co., Ltd. is a leading manufacturer and supplier of high-quality tungsten products. Established in 1985, the company specializes in the production of tungsten wires, rods, sheets, and other specialized components for various industries including electronics, aerospace, and medical. With a commitment to excellence and innovation, Tokyo Tungsten Co., Ltd. strives to meet the highest standards of quality and customer satisfaction.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

11 Patents

#1,587 in Tokyo

#4,040 in Japan

#50,224 in the World

Tokyo Tungsten Co., Ltd.

Forward Citations = 96

25 inventors:

Tadashi Arikawa (5 out of 9 patents)

Akira Ichida (5 out of 6 patents)

Mitsuo Osada (5 out of 7 patents)

4. Norio Hirayama (4 out of 6 patents)

5. Hidetoshi Maesato (4 out of 5 patents)

Please report any incorrect information to support@idiyas.com

Loading…