Patent Assignment Abstract of Title
NOTE:Results display only for issued patents and published applications.
For pending or abandoned applications please consult USPTO staff.
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Total Assignments:
2
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Patent #:
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Issue Dt:
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12/25/2001
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Application #:
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09768310
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Filing Dt:
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01/25/2001
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Publication #:
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Pub Dt:
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06/28/2001
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Inventors:
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Takeshi Shimano, Akira Arimoto
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Title:
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Optical head having two semiconductor lasers of different wavelength, an objective lens focusing laser beams on different thickness substrates, and an annular phase shifter decreasing focused laser beam spot aberration
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 1-1-88, USHITORA |
| IBARAKI-SHI, OSAKA, JAPAN 567-8567 |
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| JAMES A. OLIFF |
| OLIFF & BERRIDGE, PLC |
| P.O. BOX 19928 |
| ALEXANDRIA, VA 22320 |
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Assignment:
2
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 1 KOIZUMI, OYAMAZAKI, OYAMAZAKI-CHO, OTOKUNI-GUN |
| KYOTO, JAPAN |
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| NADEEN NSOULI |
| 71 SOUTH WACKER DRIVE |
| CHICAGO, IL 60606 |
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