Patents by Inventor Jitsunari Kojima
Jitsunari Kojima 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: 8253789Abstract: In a correction data storing unit of a digital camera which captures a microscopic image, image data of a light image without a sample, image data obtained by using a filter for removing a defective portion for the light image without a sample, image data where a region without being corrected (or a region being corrected) is set in the light image without the sample, and shading correction data calculated from image data obtained by setting a mask region where data after being corrected is set to 0 are stored. An operator obtains, captures, records, and stores an observation image satisfactory for great-looking by using arbitrary shading correction data. In this way, a captured image satisfactory for great-looking is obtained by making a suitable shading correction according to a shading characteristic, which is caused by an optical system.Type: GrantFiled: February 9, 2010Date of Patent: August 28, 2012Assignee: Olympus CorporationInventors: Shinichiro Aizaki, Junzo Sakurai, Jitsunari Kojima
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Patent number: 8102418Abstract: This is a microscope observation system comprising a microscope, a camera unit, a light-amount adjustment unit for controlling adjustment parts included the microscope in order to suppress the amount of reflected light of a specimen image formed on the camera unit, a camera adjustment unit for controlling an adjustment part group of the camera unit in order to adjust image signals photo-electrically converted by the camera unit to a desired state, a light measurement unit for measuring the brightness of the specimen, a display unit for displaying a captured image, a control unit for controlling continuous display speed indicating the continuous display interval of an image continuously displayed on the display unit and at least one of an observation position shifting unit for changing the observation position or observation magnification of the specimen or an observation state detection unit for detecting the observation position or the observation magnification.Type: GrantFiled: November 21, 2008Date of Patent: January 24, 2012Assignee: Olympus CorporationInventor: Jitsunari Kojima
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Publication number: 20100188497Abstract: In a correction data storing unit of a digital camera which captures a microscopic image, image data of a light image without a sample, image data obtained by using a filter for removing a defective portion for the light image without a sample, image data where a region without being corrected (or a region being corrected) is set in the light image without the sample, and shading correction data calculated from image data obtained by setting a mask region where data after being corrected is set to 0 are stored. An operator obtains, captures, records, and stores an observation image satisfactory for great-looking by using arbitrary shading correction data. In this way, a captured image satisfactory for great-looking is obtained by making a suitable shading correction according to a shading characteristic, which is caused by an optical system.Type: ApplicationFiled: February 9, 2010Publication date: July 29, 2010Applicant: OLYMPUS CORPORATIONInventors: Shinichiro AIZAKI, Junzo Sakurai, Jitsunari Kojima
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Patent number: 7653300Abstract: An image recording apparatus for a microscope having a still camera function and/or a video photography function is disclosed. Automatic exposure (AE) adjustment is performed at appropriate time intervals in the photographic period so as to obtain sample images of roughly uniform brightness. Also, image data and data of plural photographic conditions are recorded in a single photographic session by setting up an AE adjustment time (Tae) and an exposure time (Texp) so as not to exceed a photographic interval (Tint) that is constant.Type: GrantFiled: March 16, 2006Date of Patent: January 26, 2010Assignee: Olympus CorporationInventors: Koji Fujiyoshi, Jitsunari Kojima
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Publication number: 20090296203Abstract: This is a microscope observation system comprising a microscope, a camera unit, a light-amount adjustment unit for controlling adjustment parts included the microscope in order to suppress the amount of reflected light of a specimen image formed on the camera unit, a camera adjustment unit for controlling an adjustment part group of the camera unit in order to adjust image signals photo-electrically converted by the camera unit to a desired state, a light measurement unit for measuring the brightness of the specimen, a display unit for displaying a captured image, a control unit for controlling continuous display speed indicating the continuous display interval of an image continuously displayed on the display unit and at least one of an observation position shifting unit for changing the observation position or observation magnification of the specimen or an observation state detection unit for detecting the observation position or the observation magnification.Type: ApplicationFiled: November 21, 2008Publication date: December 3, 2009Applicant: Olympus CorporationInventor: Jitsunari KOJIMA
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Publication number: 20090185034Abstract: An image pickup unit obtains a specimen image by picking up the observation image of a specimen produced by a microscope. An installation state information obtainment unit obtains installation state information indicating the installation state of an optical member inserted into the observation light path of the microscope. An exposure condition setup unit sets an exposure condition to be used when the image pickup unit picks up the observation image to obtain a specimen image in a second magnification ratio, on the basis of installation state information used when the image pickup unit obtained a specimen image in a first magnification ratio by picking up the observation image, and on the basis of installation state information to be used when the image pickup unit obtains a specimen image in the second magnification ratio, which is a different magnification ratio from the first magnification ratio, by picking up the specimen image.Type: ApplicationFiled: January 15, 2009Publication date: July 23, 2009Applicant: Olympus CorporationInventors: Hironori KISHIDA, Jitsunari Kojima
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Publication number: 20060210262Abstract: An image recording apparatus for a microscope having a still camera function and/or a video photography function is disclosed. Automatic exposure (AE) adjustment is performed at appropriate time intervals in the photographic period so as to obtain sample images of roughly uniform brightness. Also, image data and data of plural photographic conditions are recorded in a single photographic session by setting up an AE adjustment time (Tae) and an exposure time (Texp) so as not to exceed a photographic interval (Tint) that is constant.Type: ApplicationFiled: March 16, 2006Publication date: September 21, 2006Inventors: Koji Fujiyoshi, Jitsunari Kojima
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Patent number: 6917377Abstract: A microscope system provided by the present invention in which an electronic camera is used to pick up an observation image by a microscope, comprising a controlling section for setting an image pickup operation of an image pickup element in the electronic camera to an optimum state in accordance with a state of at least one of an optical system combination for a projection magnification of at least an objective lens and a photo eyepiece on a microscope side, an observation method, and lighting conditions.Type: GrantFiled: February 1, 2001Date of Patent: July 12, 2005Assignee: Olympus Optical Co., Ltd.Inventors: Shinichiro Aizaki, Mitsuhiko Saito, Jitsunari Kojima, Hitoshi Ueda, Hideyuki Masuyama
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Publication number: 20050046905Abstract: In a correction data storing unit of a digital camera which captures a microscopic image, image data of a light image without a sample, image data obtained by using a filter for removing a defective portion for the light image without a sample, image data where a region without being corrected (or a region being corrected) is set in the light image without the sample, and shading correction data calculated from image data obtained by setting a mask region where data after being corrected is set to 0 are stored. An operator obtains, captures, records, and stores an observation image satisfactory for great-looking by using arbitrary shading correction data. In this way, a captured image satisfactory for great-looking is obtained by making a suitable shading correction according to a shading characteristic, which is caused by an optical system.Type: ApplicationFiled: August 23, 2004Publication date: March 3, 2005Applicant: Olympus CorporationInventors: Shinichiro Aizaki, Junzo Sakurai, Jitsunari Kojima
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Publication number: 20030016301Abstract: A microscope system provided by the present invention in which an electronic camera is used to pick up an observation image by a microscope, comprising a controlling section for setting an image pickup operation of an image pickup element in the electronic camera to an optimum state in accordance with a state of at least one of an optical system combination for a projection magnification of at least an objective lens and a photo eyepiece on a microscope side, an observation method, and lighting conditions.Type: ApplicationFiled: February 1, 2001Publication date: January 23, 2003Applicant: Olympus Optical Co., Ltd.Inventors: Shinichiro Aizaki, Mitsuhiko Saito, Jitsunari Kojima, Hitoshi Ueda, Hideyuki Masuyama
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Patent number: 6505004Abstract: A photometric apparatus for a microscope comprises a light-reception element having a plurality of concentrically arranged photometric measurement areas, the light-reception element receiving observation light from the microscope and measuring a brightness of an observation image of the observation light, a calculation circuit for calculating an exposure time necessary for photographing the observation image, on the basis of a photometric measurement value obtained from at least one of the photometric measurement areas of the light-reception element, and a control circuit for performing an exposure operation on the basis of the exposure time calculated by the calculation circuit.Type: GrantFiled: February 27, 2002Date of Patent: January 7, 2003Assignee: Olympus Optical Co., Ltd.Inventors: Jitsunari Kojima, Kazuhiko Tsubota, Keiichi Iizuka, Tetsuo Tatsuda, Ri Sei, Tomohiro Uchida
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Publication number: 20020090218Abstract: A photometric apparatus for a microscope comprises a light-reception element having a plurality of concentrically arranged photometric measurement areas, the light-reception element receiving observation light from the microscope and measuring a brightness of an observation image of the observation light, a calculation circuit for calculating an exposure time necessary for photographing the observation image, on the basis of a photometric measurement value obtained from at least one of the photometric measurement areas of the light-reception element, and a control circuit for performing an exposure operation on the basis of the exposure time calculated by the calculation circuit.Type: ApplicationFiled: February 27, 2002Publication date: July 11, 2002Applicant: OLYMPUS OPTICAL CO., LTD.Inventors: Jitsunari Kojima, Kazuhiko Tsubota, Keiichi Iizuka, Tetsuo Tatsuda
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Publication number: 20020075563Abstract: There is disclosed a camera for a microscope, connected to the microscope including at least one port for outputting an image from an objective lens, for picking up an image outputted from the port, the camera comprising an image pickup element for picking up the image outputted from the port, a display direction controlling section for converting a display direction of the image picked up by the image pickup element to a predetermined display direction, a display direction setting section for setting the predetermined display direction with respect to the display direction controlling section, and a display section for displaying an image having the display direction converted by the display direction controlling section.Type: ApplicationFiled: January 31, 2001Publication date: June 20, 2002Applicant: Olympus Optical Co., Ltd.Inventors: Shinichiro Aizaki, Jitsunari Kojima, Hideyuki Masuyama, Mitsuhiko Saito, Hitoshi Ueda
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Patent number: 6385403Abstract: A photometric apparatus for a microscope comprises a light-reception element having a plurality of concentrically arranged photometric measurement areas, the light-reception element receiving observation light from the microscope and measuring a brightness of an observation image of the observation light, a calculation circuit for calculating an exposure time necessary for photographing the observation image, on the basis of a photometric measurement value obtained from at least one of the photometric measurement areas of the light-reception element, and a control circuit for performing an exposure operation on the basis of the exposure time calculated by the calculation circuit.Type: GrantFiled: October 27, 1999Date of Patent: May 7, 2002Assignee: Olympus Optical Co., Ltd.Inventors: Jitsunari Kojima, Kazuhiko Tsubota, Keiichi Iizuka, Tetsuo Tatsuda
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Publication number: 20020051287Abstract: The imaging apparatus for a microscope, according to the present invention, comprises an imaging section which picks up an observation image of a sample formed in a microscope body, an imaging apparatus body having the imaging section, a display section which displays image data corresponding to the observation image picked up by the imaging section, and an operation section which performs operation of the imaging section, wherein the imaging apparatus body and the display section are separate from each other.Type: ApplicationFiled: July 23, 2001Publication date: May 2, 2002Applicant: Olympus Optical Co., Ltd.Inventors: Tomohiro Uchida, Jitsunari Kojima, Shinichiro Aizaki
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Patent number: 6043475Abstract: A focal point adjustment apparatus applied to an optical apparatus with a projection optical system, comprises, an object lens, a stage on which a plate member on which a subject is put for measurement is placed, provision unit for providing the thickness of the plate member for measurement, determining unit for determining data on the distance between the object lens and the stage on the basis of the thickness of the plate member for measurement provided by the provision unit, and focusing unit for adjusting the distance between the object lens and the stage on the basis of the data on the distance between the object lens and the stage determined by the determining unit.Type: GrantFiled: April 15, 1997Date of Patent: March 28, 2000Assignee: Olympus Optical Co., Ltd.Inventors: Masakazu Shimada, Takashi Nagano, Takashi Yoneyama, Nobuyuki Nagasawa, Hideaki Endo, Jitsunari Kojima, Atsuhiro Tsuchiya, Yukiko Saeki
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Patent number: 5703714Abstract: A microscope apparatus includes a light source for generating illumination light, an illumination optical system for illuminating an object to be observed with the illumination light, and an observation optical system for conducting an observation image of the illuminated object to an observation site. An objective change unit is arranged in the observation optical system for holding a plurality of objectives and for selectively inserting one of the objectives onto an optical path of the observation optical system. An optical system controller, which independently controls an optical element arranged in the illumination optical system and independently controls an optical element arranged in the observation optical system, includes a frame controller for controlling the objective change unit to insert one of the plurality of objectives selected onto the optical path of the observation optical system.Type: GrantFiled: January 26, 1996Date of Patent: December 30, 1997Assignee: Olympus Optical Co., Ltd.Inventor: Jitsunari Kojima
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Patent number: 5276550Abstract: An optical microscope including a revolver for mounting a plurality of objective lenses having different magnifications, a stage for holding a specimen to be inspected and being movable in a plane perpendicular to an inspection optical axis, a television camera for picking-up an image of the specimen by means of an objective lens which is indexed into the inspection optical axis, and a television monitor for displaying an image of the specimen on a display screen. In order to select an objective lens having a desired magnification and to move the stage with respect to the inspection optical axis automatically, a desired region is denoted on the image displayed on the display screen by operating a mouse. Then, a necessary magnification is calculated in accordance with a division ratio obtained by dividing an area of the desired region by a full area of the display screen.Type: GrantFiled: April 15, 1991Date of Patent: January 4, 1994Assignee: Olympus Optical Co., Ltd.Inventor: Jitsunari Kojima
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Patent number: 5260825Abstract: A microscope has a plural number of objective lenses switchable from one to another, a memory circuit for storing parfocality data for the individual objective lenses, and a correcting device for correcting imaging conditions on the basis of the parfocality data for an objective lens currently used and another objective lens to be selected for microscopy. The microscope is capable of always providing favorably focused condition even when the objective lenses are switched from one to another for changing observation magnification levels.Type: GrantFiled: August 6, 1991Date of Patent: November 9, 1993Assignee: Olympus Optical Co., Ltd.Inventors: Takashi Nagano, Jitsunari Kojima
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Patent number: 5239171Abstract: A photographing apparatus for microscopes is constructed so that a simultaneous observation is made by overlapping an image of a sample formed by transmitted illumination with that formed by reflected fluorescence, in which signals for designating the simultaneous observation at once cause a second shutter for the transmitted illumination to be closed and a first shutter for the reflected fluorescence to be opened, the brightness of the sample image formed by the reflected fluorescence is measured by a light-detecting element disposed in an optical path for observation, and after a light-adjusting member for the transmitted illumination is controlled so that, based on data outputted from a memory device corresponding to a measured value, the brightness of the sample image by the transmitted illumination in the simultaneous observation is balanced with that of the sample image by the reflected fluorescence, the second shutter is opened.Type: GrantFiled: February 27, 1992Date of Patent: August 24, 1993Assignee: Olympus Optical Co., Ltd.Inventors: Yutaka Takabayashi, Hiromi Utsunomiya, Takashi Nagano, Jitsunari Kojima