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Patent applications and USPTO patent grants for Hasumi; Kazuo.The latest application filed is for "dust cleaner and dust cleaning method".
Patent | Date |
---|---|
Dust cleaner and dust cleaning method Grant 5,351,354 - Hasumi , et al. October 4, 1 | 1994-10-04 |
Magnetic recording medium having two magnetic layers each containing a specified polyurethane resin Grant 5,141,808 - Hashimoto , et al. August 25, 1 | 1992-08-25 |
Magnetic recording medium which contains a binder of nitrogen containing vinyl chloride polymer and an amino group containing polyurethane Grant 5,023,135 - Hasumi , et al. June 11, 1 | 1991-06-11 |
Process for producing membranes for use in gas separation Grant 4,919,856 - Anazawa , et al. April 24, 1 | 1990-04-24 |
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