The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 13, 2009
Filed:
Aug. 24, 2004
Manabu Oumi, Chiba, JP;
Yasuyuki Mitsuoka, Chiba, JP;
Norio Chiba, Chiba, JP;
Nobuyuki Kasama, Chiba, JP;
Kenji Kato, Chiba, JP;
Takashi Niwa, Chiba, JP;
Manabu Oumi, Chiba, JP;
Yasuyuki Mitsuoka, Chiba, JP;
Norio Chiba, Chiba, JP;
Nobuyuki Kasama, Chiba, JP;
Kenji Kato, Chiba, JP;
Takashi Niwa, Chiba, JP;
Seiko Instruments Inc., , JP;
Abstract
A near-field optical probe has a planar substrate formed with a through-hole and a phase shifter layer translucent to light having a wavelength of illumination light used to illuminate the substrate for producing near-field light. The phase shifter layer is effective to cause a shift of phase in the illumination light by 180 degrees and is provided on the substrate so as to cover one opening of the through-hole to form a microscopic aperture for producing near-field light.