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Patent applications and USPTO patent grants for Hayao; Sakae.The latest application filed is for "erasing implement and writing implement provided with erasing implement".
Patent | Date |
---|---|
Erasing implement and writing implement provided with erasing implement Grant 9,994,066 - Hayao , et al. June 12, 2 | 2018-06-12 |
Erasing Implement And Writing Implement Provided With Erasing Implement App 20150033499 - Hayao; Sakae ;   et al. | 2015-02-05 |
Application liquid reservoir App 20010053308 - Hayao, Sakae ;   et al. | 2001-12-20 |
Apparatus for refilling an ink cartridge Grant 5,845,682 - Hayao December 8, 1 | 1998-12-08 |
Ink refilling assembly Grant 5,595,223 - Hayao January 21, 1 | 1997-01-21 |
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