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Patent applications and USPTO patent grants for Ezaki; Yasuo.The latest application filed is for "method for forming a hollow plastic product".
Patent | Date |
---|---|
Method for forming a hollow plastic product Grant 7,678,324 - Nakagawa , et al. March 16, 2 | 2010-03-16 |
Method for forming a hollow plastic product App 20090008822 - Nakagawa; Tatsuya ;   et al. | 2009-01-08 |
Hollow plastic product having a connector pipe Grant 7,316,427 - Nakagawa , et al. January 8, 2 | 2008-01-08 |
Hollow plastic product having a connector pipe App 20050082825 - Nakagawa, Tatsuya ;   et al. | 2005-04-21 |
Method for manufacturing a multi-layer plastic pipe Grant 6,537,484 - Nakagawa , et al. March 25, 2 | 2003-03-25 |
Spiral bellows structure App 20020062873 - Nakagawa, Tatsuya ;   et al. | 2002-05-30 |
Method For Manufacturing A Hollow Plastic Product App 20010042947 - NAKAGAWA, TATSUYA ;   et al. | 2001-11-22 |
Method for manufacturing a multi-layer plastic pipe App 20010013675 - Nakagawa, Tatsuya ;   et al. | 2001-08-16 |
Hollow plastic product Grant 6,119,731 - Nakagawa , et al. September 19, 2 | 2000-09-19 |
Hollow plastic product Grant 5,653,265 - Nakagawa , et al. August 5, 1 | 1997-08-05 |
Method for producing a hollow plastic product having a radially extending portion Grant 5,198,174 - Nakagawa , et al. March 30, 1 | 1993-03-30 |
Molding apparatus for forming a parison and product of differing materials Grant 4,907,957 - Nakagawa , et al. March 13, 1 | 1990-03-13 |
Method and apparatus for manufacturing a hollow plastic product Grant 4,659,531 - Ezaki April 21, 1 | 1987-04-21 |
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