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For the Inventor, By the Inventor

Sakai, Japan

Kazuo Watanabe

USPTO Granted Patents = 9

Average Co-Inventor Count = 3.6

ph-index = 5

Forward Citations = 88(Granted Patents)


Location History:

  • Kitakyushu, JA (1977 - 1978)
  • Kitakyusyushi, JP (1982)
  • Kitakyushyu, JP (1984)
  • Kitakyushu, JP (1983 - 1986)
  • Sakai, JP (1994 - 1999)

Company Filing History:

goldMedal9 out of 3,548 
 
Nippon Steel Corporation
 patents
silverMedal1 out of 15,863 
 
Mitsubishi Electric Corporation
 patents
where one patent can have more than one assignee

Years Active: 1977-1999

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9 patents (USPTO):Explore Patents
1. 5985051 - Shape steel material having high strength, high toughness and excellent (1999-11-16),
2. 5421920 - Process for producing rolled shape steel material having high strength, (1995-06-06),
3. 5336339 - Refractory shape steel material containing oxide and process for (1994-08-09),
4. 4603806 - Method of manufacturing metal pipe with longitudinally differentiated (1986-08-05),
5. 4455849 - Press-rolling process for producing a metal tubular product (1984-06-26),
6. 4407056 - Method and apparatus for manufacturing metal sections (1983-10-04),
7. 4334419 - Method for rolling steel sections having flanges or flange-like portions (1982-06-15),
8. 4086801 - H-shape metallic material rolling process (1978-05-02),
9. 4003229 - Method for compensating tail end (1977-01-18),
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