Hiromatsu; Hidenori
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hiromatsu; Hidenori.The latest application filed is for "spring steel with improved hardenability and pitting resistance".
- Hiromatsu; Hidenori - Utsunomiya JP
- HIROMATSU; Hidenori - Utsuncmiya-shi JP
- Hiromatsu; Hidenori - Utsunomiya-shi JP
- Hiromatsu, Hidenori - Tochigi JP
| Patent | Date |
|---|---|
| Spring steel with improved hardenability and pitting resistance Grant 8,337,642 - Fukuzumi , et al. December 25, 2 | 2012-12-25 |
| Spring Steel With Improved Hardenability And Pitting Resistance App 20120205013 - FUKUZUMI; Tatsuo ; et al. | 2012-08-16 |
| Spring steel with improved hardenability and pitting resistance Grant 8,197,614 - Fukuzumi , et al. June 12, 2 | 2012-06-12 |
| Spring steel with improved hardenability and pitting resistance App 20110041962 - Fukuzumi; Tatsuo ; et al. | 2011-02-24 |
| Spring steel with improved hardenability and pitting resistance Grant 7,850,794 - Fukuzumi , et al. December 14, 2 | 2010-12-14 |
| Steel for spring being improved in quenching characteristics and resistance to pitting corrosion App 20050217766 - Fukuzumi, Tatsuo ; et al. | 2005-10-06 |
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