Patents by Inventor Kimihiko Nishioka
Kimihiko Nishioka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8424111Abstract: Provided is a scanning near-field optical microscope capable of obtaining, in a highly sensitive manner, optical information having a spatial frequency higher than a spatial frequency corresponding to a wavelength of irradiation light. A scanning near-field optical microscope 100 according to the present invention includes: a light irradiating part 102 for emitting illumination light toward a sample 107; a light receiving part 112 for receiving light; a microstructure for generating or selectively transmitting near-field light, the microstructure being disposed on at least one of an emission side of the light irradiating part 102 and an incident side of the light receiving part 112; and an ultrahigh-wavenumber transmitting medium 108 for transmitting near-field light, the ultrahigh-wavenumber transmitting medium exhibiting anisotropy in permittivity or permeability.Type: GrantFiled: June 23, 2011Date of Patent: April 16, 2013Assignees: Olympus Corporation, The University of TokyoInventors: Koichi Karaki, Kimihiko Nishioka, Yasuo Sasaki, Takuya Tsukagoshi, Yoshiharu Ajiki, Isao Shimoyama, Kiyoshi Matsumoto, Tetsuro Kan, Yusuke Takei, Kentaro Noda
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Patent number: 8223444Abstract: An optical element using a medium exhibiting negative refraction, a carbon nano tube being used for the medium exhibiting negative refraction, is disclosed. There is also disclosed an optical system having a plurality of optical elements each formed of a medium exhibiting negative refraction, wherein the plurality of optical elements includes optical elements having different chromatic dispersions.Type: GrantFiled: December 29, 2005Date of Patent: July 17, 2012Assignee: Olympus CorporationInventor: Kimihiko Nishioka
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Publication number: 20110321204Abstract: Provided is a scanning near-field optical microscope capable of obtaining in a highly sensitive manner, optical information having a spatial frequency higher than a spatial frequency corresponding to a wavelength of irradiation light. A scanning near-field optical microscope 100 according to the present invention includes: a light irradiating part 102 for emitting illumination light toward a sample 107; a light receiving part 112 for receiving light; a microstructure for generating or selectively transmitting near-field light, the microstructure being disposed on at least one of an emission side of the light irradiating part 102 and an incident side of the light receiving part 112; and an ultrahigh-wavenumber transmitting medium 108 for transmitting near-field light, the ultrahigh-wavenumber transmitting medium exhibiting anisotropy in permittivity or permeability.Type: ApplicationFiled: June 23, 2011Publication date: December 29, 2011Applicants: THE UNIVERSITY OF TOKYO, OLYMPUS CORPORATIONInventors: Koichi KARAKI, Kimihiko NISHIOKA, Yasuo SASAKI, Takuya TSUKAGOSHI, Yoshiharu AJIKI, Isao SHIMOYAMA, Kiyoshi MATSUMOTO, Tetsuro KAN, Yusuke TAKEI, Kentaro NODA
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Patent number: 7800843Abstract: A lens system includes a first lens which is formed of a medium exhibiting negative refraction and a second lens which is formed of a medium having a positive refractive index. Abbe's number for a material which forms the first lens differs from Abbe's number for a material which forms the second lens. Moreover, a lens system includes a first lens which is formed of a medium exhibiting negative refraction and a second lens which is formed of a medium exhibiting negative refraction. Abbe's number for a material which forms the first lens differs from Abbe's number for a material which forms the second lens.Type: GrantFiled: February 6, 2007Date of Patent: September 21, 2010Assignee: Olympus CorporationInventor: Kimihiko Nishioka
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Patent number: 7782386Abstract: An optical apparatus includes a variable optical-property element, a driving circuit driving the variable optical-property element, and an image sensor. In order to compensate a change of an imaging state caused by at least one factor of temperature, humidity, a manufacturing error, a change of an object distance, and a zoom state, photographing is performed while referring to a look-up table to change driving information provided to the variable optical-property element, and the driving information that the high-frequency component of a photographed image is practically maximized is assumed so that the variable optical-property element is driven by the driving information to perform photographing.Type: GrantFiled: March 24, 2003Date of Patent: August 24, 2010Assignee: Olympus CorporationInventors: Kimihiko Nishioka, Kazuhito Hayakawa, Kazuya Nishimura, Hisashi Goto
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Patent number: 7688522Abstract: A lens has a convex or concave shaped smooth non-spherical surface or non-circular curve which is formed of a medium indicating negative refraction.Type: GrantFiled: April 21, 2006Date of Patent: March 30, 2010Assignee: Olympus CorporationInventor: Kimihiko Nishioka
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Patent number: 7643227Abstract: A lens system includes a first lens which is formed of a medium exhibiting negative refraction, and a second lens having a positive refractive index. Accordingly, it is possible to provide a lens system in which a negative refractive index medium for which a curvature of field is reduced. Moreover, it is also possible to have a lens system in which a lens having a positive focal length and a lens having a positive focal length, which is made of a positive refractive index medium, are combined.Type: GrantFiled: January 29, 2007Date of Patent: January 5, 2010Assignee: Olympus CorporationInventor: Kimihiko Nishioka
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Patent number: 7561185Abstract: A shake compensating device for optical devices includes an optical system for forming an image of an object; a reflecting surface placed in the optical path of the optical system, a first substrate having a first electrode, placed adjacent to the reflecting surface; a second substrate fixed to an optical device, placed opposite to the first substrate and having a second electrode at a position opposite to the first electrode; a voltage control circuit for applying voltages across the first electrode and the second electrode, one of which is divided into a plurality of electrodes; and a detecting unit for detecting the shake angle of the optical device. In this case, the voltage control circuit controls the voltages applied across the divided electrodes and the other electrode opposite thereto in accordance with the output of the detecting unit.Type: GrantFiled: July 19, 2002Date of Patent: July 14, 2009Assignee: Olympus CorporationInventors: Masafumi Yamasaki, Shinji Kaneko, Kimihiko Nishioka
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Patent number: 7529030Abstract: A lens made of a medium exhibiting negative refraction is disclosed. Also, an optical element made of a medium exhibiting negative refraction is disclosed. The lens or optical element may be incorporated in an optical system or an optical apparatus.Type: GrantFiled: September 2, 2005Date of Patent: May 5, 2009Assignee: Olympus CorporationInventor: Kimihiko Nishioka
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Patent number: 7499221Abstract: An optical apparatus includes an optical element that is made of a medium exhibiting negative refraction. A correction varies a wavelength of light used, thereby correcting a variation in image forming capability, which occurs due to one of a variation in refractive index of the optical element and a variation in refractive index of a surrounding medium.Type: GrantFiled: November 18, 2005Date of Patent: March 3, 2009Assignee: Olympus CorporationInventor: Kimihiko Nishioka
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Publication number: 20080266635Abstract: An optical apparatus uses a variable-optical-characteristic optical element whereby focusing, zooming or the like can be effected without moving a lens or the like and the whole optical apparatus can be arranged in a lightweight structure. The user wears a power transmitting unit 303 by hanging it from his/her neck, for example. The power transmitting unit 303 may be put in a clothes pocket or the like. The power transmitting unit 303 may be placed somewhere around the user. In the power transmitting unit 303, a transmitting circuit 305 is driven by a power supply 304 to send an electromagnetic wave from a transmitting antenna 306 toward variable-focus eyeglasses 302. The variable-focus eyeglasses 302 have a receiving antenna 307 provided on eyeglass frames 308 to receive the electromagnetic wave sent from the power transmitting unit 303. The received electromagnetic wave is, for example, boosted in voltage and rectified to drive the variable-focus lenses.Type: ApplicationFiled: June 26, 2008Publication date: October 30, 2008Applicant: OLYMPUS CORPORATIONInventors: Kimihiko NISHIOKA, Miyuki Murakami
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Patent number: 7405884Abstract: An optical apparatus uses a variable-optical-characteristic optical element whereby focusing, zooming or the like can be effected without moving a lens or the like and the whole optical apparatus can be arranged in a lightweight structure. The user wears a power transmitting unit 303 by hanging it from his/her neck, for example. The power transmitting unit 303 may be put in a clothes pocket or the like. The power transmitting unit 303 may be placed somewhere around the user. In the power transmitting unit 303, a transmitting circuit 305 is driven by a power supply 304 to send an electromagnetic wave from a transmitting antenna 306 toward variable-focus eyeglasses 302. The variable-focus eyeglasses 302 have a receiving antenna 307 provided on eyeglass frames 308 to receive the electromagnetic wave sent from the power transmitting unit 303. The received electromagnetic wave is, for example, boosted in voltage and rectified to drive the variable-focus lenses.Type: GrantFiled: September 21, 2001Date of Patent: July 29, 2008Assignee: Olympus CorporationInventors: Kimihiko Nishioka, Miyuki Murakami
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Publication number: 20080152333Abstract: A shake compensating device for optical devices includes an optical system for forming an image of an object; a reflecting surface placed in the optical path of the optical system, a first substrate having a first electrode, placed adjacent to the reflecting surface; a second substrate fixed to an optical device, placed opposite to the first substrate and having a second electrode at a position opposite to the first electrode; a voltage control circuit for applying voltages across the first electrode and the second electrode, one of which is divided into a plurality of electrodes; and a detecting unit for detecting the shake angle of the optical device. In this case, the voltage control circuit controls the voltages applied across the divided electrodes and the other electrode opposite thereto in accordance with the output of the detecting unit.Type: ApplicationFiled: March 5, 2008Publication date: June 26, 2008Applicant: OLYMPUS CORPORATIONInventors: Masafumi YAMASAKI, Shinji Kaneko, Kimihiko Nishioka
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Patent number: 7369327Abstract: A variable optical-property element includes a liquid crystal the pitch of twist is less than 60 times the wavelength of light used, so that a spatially uneven electric or magnetic field or temperature is applied to the liquid crystal to thereby form an index distribution, and the electric or magnetic field or the temperature is changed to thereby alter the index distribution. In this way, the variable optical-property element is capable of changing its optical properties as a liquid crystal lens and is used in an optical apparatus.Type: GrantFiled: June 8, 1999Date of Patent: May 6, 2008Assignee: Olympus CorporationInventor: Kimihiko Nishioka
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Publication number: 20080030872Abstract: An optical apparatus has an imaging optical system provided with a deformable mirror and an electronic zoom function that an image recorded in an image sensor by the imaging optical system is magnified by image processing. A ray deflecting function of the deformable mirror is changed in accordance with a change of an object area corresponding to an image to be used, and aberration of the imaging optical system is optimized. The deformable mirror is controlled by an arithmetical unit connected to an image processor and a driving circuit. The electronic zoom is performed with respect to the image recorded in the image sensor through a signal processing circuit and the image processor, and when the image is displayed on a display device, the deformable mirror is deformed so that sharpness at nearly the center of an object image formed on the image sensor is improved.Type: ApplicationFiled: August 7, 2007Publication date: February 7, 2008Applicant: OLYMPUS CORPORATIONInventors: Kimihiko NISHIOKA, Kentaro SEKIYAMA
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Patent number: 7301710Abstract: The invention relates to an optical system that has reduced power consumptions, ensures noiseless operations and fast responses, contributes to cost reductions due to simplified mechanical structure, and, albeit having a small outside diameter and small size, is capable of focusing and zooming. The optical system of the invention comprises a variable mirror and a moving optical element group. The optical element group has a zooming function, and the variable mirror has a focusing function. An optical apparatus of the invention comprises such an optical system as mentioned above.Type: GrantFiled: July 28, 2004Date of Patent: November 27, 2007Assignee: Olympus CorporationInventors: Kimihiko Nishioka, Eiji Yasuda, Kentaro Sekiyama, Tetsuo Nagata
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Patent number: 7269344Abstract: An optical apparatus has an imaging optical system provided with a deformable mirror and an electronic zoom function that an image recorded in an image sensor by the imaging optical system is magnified by image processing. A ray deflecting function of the deformable mirror is changed in accordance with a change of an object area corresponding to an image to be used, and aberration of the imaging optical system is optimized. The deformable mirror is controlled by an arithmetical unit connected to an image processor and a driving circuit. The electronic zoom is performed with respect to the image recorded in the image sensor through a signal processing circuit and the image processor, and when the image is displayed on a display device, the deformable mirror is deformed so that sharpness at nearly the center of an object image formed on the image sensor is improved.Type: GrantFiled: February 11, 2004Date of Patent: September 11, 2007Assignee: Olympus CorporationInventors: Kimihiko Nishioka, Kentaro Sekiyama
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Publication number: 20070201149Abstract: A lens system includes a first lens which is formed of a medium exhibiting negative refraction and a second lens which is formed of a medium having a positive refractive index. Abbe's number for a material which forms the first lens differs from Abbe's number for a material which forms the second lens. Moreover, a lens system includes a first lens which is formed of a medium exhibiting negative refraction and a second lens which is formed of a medium exhibiting negative refraction. Abbe's number for a material which forms the first lens differs from Abbe's number for a material which forms the second lens.Type: ApplicationFiled: February 6, 2007Publication date: August 30, 2007Inventor: Kimihiko Nishioka
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Publication number: 20070195433Abstract: A lens system includes a first lens which is formed of a medium exhibiting negative refraction, and a second lens having a positive refractive index. Accordingly, it is possible to provide a lens system in which a negative refractive index medium for which a curvature of field is reduced. Moreover, it is also possible to have a lens system in which a lens having a positive focal length and a lens having a positive focal length, which is made of a positive refractive index medium, are combined.Type: ApplicationFiled: January 29, 2007Publication date: August 23, 2007Inventor: Kimihiko Nishioka
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Patent number: 7209295Abstract: The invention relates to an optical system that has reduced power consumptions, ensures noiseless operations and fast responses, contributes to cost reductions due to simplified mechanical structure, and, albeit having a small outside diameter and small size, is capable of focusing and zooming. The optical system of the invention comprises a variable mirror and a moving optical element group. The optical element group has a zooming function, and the variable mirror has a focusing function. An optical apparatus of the invention comprises such an optical system as mentioned above.Type: GrantFiled: February 7, 2003Date of Patent: April 24, 2007Assignee: Olympus CorporationInventors: Kimihiko Nishioka, Eiji Yasuda, Kentaro Sekiyama, Tetsuo Nagata