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Kawasaki, Japan

Toshiba Tungaloy Co., Ltd.

USPTO Granted Patents = 37

Forward Citations = 508

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63 inventors (with patents filed for the assignee):

Masaki Kobayashi (8 out of 57 patents)

Mitsuo Ueki (5 out of 5 patents)

Keiichi Kobori (4 out of 4 patents)

4. Kozo Kitamura (4 out of 5 patents)

5. Susumu Yamaya (4 out of 4 patents)

6. Shin-ichi Hirano (4 out of 5 patents)

7. Itsuo Yazaki (3 out of 3 patents)

8. Takeshi Saitoh (3 out of 3 patents)

9. Hisashi Suzuki (2 out of 32 patents)

10. Tsutomu Mashimo (2 out of 7 patents)

11. Satoshi Kinoshita (2 out of 9 patents)

12. Nobukazu Yoshikawa (2 out of 2 patents)

13. Hiroyuki Kodama (2 out of 2 patents)

14. Hiroshi Kitada (2 out of 2 patents)

15. Tuyoshi Saito (2 out of 2 patents)

37 patents: Sort by Forward Citations

1. 7070643 - Compositionally graded sintered alloy and method of producing the same (2006-07-04),

2. 6824823 - Coated cutting tool and method for producing the same (2004-11-30),

3. 6723389 - Process for producing coated cemented carbide excellent in peel strength (2004-04-20),

4. 6627335 - Coated cutting tool and method for producing the same (2003-09-30),

5. 6589602 - Highly adhesive surface-coated cemented carbide and method for producing the same (2003-07-08),

6. 6379798 - Laminated coated-material for cutting tool (2002-04-30),

7. 6284356 - Aluminum oxide-coated tool member (2001-09-04),

8. 5993506 - Plate-crystalline tungsten carbide-containing hard alloy, composition (1999-11-30),

9. 5918103 - Plate-crystalline tungsten carbide-containing hard alloy, composition (1999-06-29),

10. 5890853 - Drill and drill tip (1999-04-06),

11. 5509558 - Metal oxide resistor, power resistor, and power circuit breaker (1996-04-23),

12. 5411571 - Hard sintered alloy having fine pores and process for preparing the same (1995-05-02),

13. 5306320 - Stoichiometric B1-type tantalum nitride and a sintered body thereof and (1994-04-26),

14. 5238335 - Reamer (1993-08-24),

15. 5223350 - Mold material for molding of an optical part and process for producing (1993-06-29),

Toshiba Tungaloy Co., Ltd. is a leading manufacturer of cutting tools and industrial products. Founded in 1934, the company is based in Tokyo, Japan, and operates globally. Tungaloy specializes in developing innovative solutions for various industries, including automotive, aerospace, energy, and general engineering. With a strong focus on research and development, Tungaloy offers a wide range of high-quality tools, inserts, and systems to enhance productivity and efficiency in machining operations. Visit their website for more information about their products and services.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

37 Patents

#23 in Kawasaki

#2,012 in Japan

#17,736 in the World

Kawasaki, Japan

Toshiba Tungaloy Co., Ltd.

Forward Citations = 508

63 inventors:

Masaki Kobayashi (8 out of 57 patents)

Mitsuo Ueki (5 out of 5 patents)

Keiichi Kobori (4 out of 4 patents)

4. Kozo Kitamura (4 out of 5 patents)

5. Susumu Yamaya (4 out of 4 patents)

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