Patents by Inventor Naohisa Shibata
Naohisa Shibata 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).
-
Publication number: 20240276084Abstract: A camera module includes, for example, a light source, a ToF sensor configured to detect reflected light from a subject that receives light from the light source, and a heat conduction member that conducts heat of the light source to the ToF sensor.Type: ApplicationFiled: January 31, 2024Publication date: August 15, 2024Applicant: NIPPON CHEMI-CON CORPORATIONInventors: Katsuya TAMAKI, Masahiro KOMIYA, Naohisa SHIBATA
-
Publication number: 20240104751Abstract: A detection system includes an imaging unit configured to acquire in advance a first distance image indicating a background and acquire a second distance image including at least the background and a target object, and a processing unit configured to calculate a first virtual volume indicating the background from the first distance image, calculate a second virtual volume indicating the target object from the second distance image, and compare the first virtual volume with the second virtual volume to detect the target object.Type: ApplicationFiled: September 18, 2023Publication date: March 28, 2024Applicant: NIPPON CHEMI-CON CORPORATIONInventors: Ryo Sato, Katsuya Tamaki, Naohisa Shibata
-
Publication number: 20240096054Abstract: A detection system includes an imaging unit configured to acquire a distance image indicating a distance to a target object, and a processing unit configured to divide pixels included in the distance image into blocks according to a distance relationship, and detects a state of the target object by comparing ratios of pixels included in the respective blocks.Type: ApplicationFiled: September 11, 2023Publication date: March 21, 2024Applicant: NIPPON CHEMI-CON CORPORATIONInventors: Ryo Sato, Katsuya Tamaki, Naohisa Shibata
-
Fundus photographing apparatus with wavefront compensation and method for photographing fundus image
Patent number: 9687144Abstract: A method for photographing a fundus image includes: acquiring photographing condition data on a first captured image being a cell image of a fundus as reference data for follow-up image capture related to the cell image, and storing the photographing condition data; and selecting, based on an operation input from an examiner, reference data for the follow-up image capture from one or more pieces of the reference data stored in advance, and reproducing a photographing condition in accordance with the selected reference data to newly acquire the cell image.Type: GrantFiled: September 29, 2015Date of Patent: June 27, 2017Assignee: NIDEK CO., LTD.Inventors: Naohisa Shibata, Yuji Yamazaki, Masaaki Hanebuchi, Yuki Yoshihara -
FUNDUS PHOTOGRAPHING APPARATUS WITH WAVEFRONT COMPENSATION AND METHOD FOR PHOTOGRAPHING FUNDUS IMAGE
Publication number: 20160089016Abstract: A method for photographing a fundus image includes: acquiring photographing condition data on a first captured image being a cell image of a fundus as reference data for follow-up image capture related to the cell image, and storing the photographing condition data; and selecting, based on an operation input from an examiner, reference data for the follow-up image capture from one or more pieces of the reference data stored in advance, and reproducing a photographing condition in accordance with the selected reference data to newly acquire the cell image.Type: ApplicationFiled: September 29, 2015Publication date: March 31, 2016Inventors: Naohisa SHIBATA, Yuji YAMAZAKI, Masaaki HANEBUCHI, Yuki YOSHIHARA -
Publication number: 20150002812Abstract: An image processing apparatus includes: an analyzer configured to process a plurality of examinee's eye images taken from a same examinee's eye, at least a part of the examinee's eye images being overlapped with each other, and output an analysis result of a cell of the examinee's eye for each of the examinee's eye images; and an instruction receiving unit configured to receive an instruction regarding a target to be analyzed by the analyzer in the plurality of examinee's eye images from an examiner, wherein the analyzer outputs the analysis results in which the instruction received by the instruction receiving unit is reflected for each of the plurality of examinee's eye images.Type: ApplicationFiled: June 26, 2014Publication date: January 1, 2015Inventors: Yuki YOSHIHARA, Masaaki HANEBUCHI, Naohisa SHIBATA
-
Publication number: 20120249957Abstract: An ophthalmic photographing apparatus includes: a first photographing unit for photographing an examinee's eye to obtain a first photography image of the examinee's eye; a second photographing unit for photographing the examinee's eye in a wider area than a photography view angle of the first photographing unit; a photography area setting unit configured to move a photography area, which is photographed by the first photographing unit, relative to the examinee's eye which is photographed by the second photographing unit; a photography position information acquisition unit configured to acquire photography position information of the first photography image of the examinee's eye from the photography area setting unit; and a storage unit configured to store the first photography image and the photography position information acquired by the photography position information acquisition unit in association with each other.Type: ApplicationFiled: March 30, 2012Publication date: October 4, 2012Applicant: NIDEK CO., LTD.Inventors: Naohisa SHIBATA, Masaaki HANEBUCHI
-
Patent number: 7919179Abstract: To provide resin-coated sand for a multilayer mold in which the consolidation strength of the casting mold obtained by using it and gas permeability thereof are improved at the same time, the amount of occurrence of pyrolytic products (tar, soot and the like) derived from organic substances is effectively inhibited, when molding is performed using such a casting mold, and further, the casting mold after molding can exhibit excellent collapsibility. Disclosed is resin-coated sand for a multilayer mold, in which surfaces of refractory particles are coated with a binder composition containing a phenolic novolak resin having an ortho/para bond ratio of methylene groups of 1.5 or more and an aromatic amine as indispensable constituents, and the grain fineness number is from 80 to 150.Type: GrantFiled: August 13, 2007Date of Patent: April 5, 2011Assignees: Asahi Organic Chemicals Industry Co., Ltd., Honda Motor Co., Ltd.Inventors: Hiroshi Furusawa, Masanori Totsuka, Naohisa Shibata
-
Patent number: 7658494Abstract: A fundus camera having a function of measuring a retinal function, capable of picking up (obtaining) a sharp color image of a fundus suitable for a fundus examination and measuring a retinal function with high accuracy comprises an illumination optical system comprising a visible light source, an image-pickup optical system comprising an image-pickup element, a mode selection switch for performing switching between a fundus photographing mode and a retinal function measurement mode based on variance of an intrinsic signal of a retina made by retinal stimulation, and a control unit which controls the optical systems, wherein the unit lowers, when the retinal function measurement mode is selected, illumination intensity of the illumination optical system per unit time in illuminating the fundus than that in picking up the color fundus image, and controls the element to pick up first and second visible fundus images at different points in time.Type: GrantFiled: June 4, 2008Date of Patent: February 9, 2010Assignee: Nidek Co., LtdInventors: Naohisa Shibata, Masaaki Hanebuchi, Tsuguo Nanjo
-
Publication number: 20080316426Abstract: A fundus camera having a function of measuring a retinal function, capable of picking up (obtaining) a sharp color image of a fundus suitable for a fundus examination and measuring a retinal function with high accuracy comprises an illumination optical system comprising a visible light source, an image-pickup optical system comprising an image-pickup element, a mode selection switch for performing switching between a fundus photographing mode and a retinal function measurement mode based on variance of an intrinsic signal of a retina made by retinal stimulation, and a control unit which controls the optical systems, wherein the unit lowers, when the retinal function measurement mode is selected, illumination intensity of the illumination optical system per unit time in illuminating the fundus than that in picking up the color fundus image, and controls the element to pick up first and second visible fundus images at different points in time.Type: ApplicationFiled: June 4, 2008Publication date: December 25, 2008Applicant: NIDEK CO. LTD.Inventors: Naohisa Shibata, Masaaki Hanebuchi, Tsuguo Nanjo
-
Publication number: 20080021133Abstract: To provide resin-coated sand for a multilayer mold in which the consolidation strength of the casting mold obtained by using it and gas permeability thereof are improved at the same time, the amount of occurrence of pyrolytic products (tar, soot and the like) derived from organic substances is effectively inhibited, when molding is performed using such a casting mold, and further, the casting mold after molding can exhibit excellent collapsibility. Disclosed is resin-coated sand for a multilayer mold, in which surfaces of refractory particles are coated with a binder composition containing a phenolic novolak resin having an ortho/para bond ratio of methylene groups of 1.5 or more and an aromatic amine as indispensable constituents, and the grain fineness number is from 80 to 150.Type: ApplicationFiled: August 13, 2007Publication date: January 24, 2008Applicants: Asahi Organic Chemicals Industry Co., Ltd., Honda Motor Co., Ltd.Inventors: Hiroshi Furusawa, Masanori Totsuka, Naohisa Shibata
-
Patent number: 7052134Abstract: A fundus camera capable of obtaining a fundus image while keeping a fixed field angle even if an eye is not emmetropia, and advantageously utilizing a photographed image for diagnosis. The camera includes a photographing optical system having a photographing optical axis, a focusing lens arranged movable along the axis in an optical-axis direction, and a first element which picks up a fundus image illuminated with illumination light for photographing via the lens, a unit which moves the lens, a unit which detects a position of the lens, a display, and a display control unit which synthesizes the fundus image picked up by the element within an opening of a display frame figure, a size of the opening determined by a detection result of the detecting unit, to display as an image keeping a fixed field angle regardless of visibility of the eye, and displays on the display.Type: GrantFiled: May 29, 2003Date of Patent: May 30, 2006Assignee: Nidek Co., Ltd.Inventors: Tsuguo Nanjo, Naohisa Shibata
-
Publication number: 20040252276Abstract: A fundus camera capable of obtaining a fundus image while keeping a fixed field angle even if an eye is not emmetropia, and advantageously utilizing a photographed image for diagnosis. The camera includes a photographing optical system having a photographing optical axis, a focusing lens arranged movable along the axis in an optical-axis direction, and a first element which picks up a fundus image illuminated with illumination light for photographing via the lens, a unit which moves the lens, a unit which detects a position of the lens, a display, and a display control unit which synthesizes the fundus image picked up by the element within an opening of a display frame figure, a size of the opening determined by a detection result of the detecting unit, to display as an image keeping a fixed field angle regardless of visibility of the eye, and displays on the display.Type: ApplicationFiled: May 29, 2003Publication date: December 16, 2004Inventors: Tsuguo Nanjo, Naohisa Shibata
-
Patent number: 6755526Abstract: The present invention intends to provide a fundus camera which enables an examiner to easily place a position for presenting the fixation target at an intended position.Type: GrantFiled: May 22, 2002Date of Patent: June 29, 2004Assignee: Nidek Co., Ltd.Inventor: Naohisa Shibata
-
Patent number: 6654553Abstract: A fundus camera for photographing a fundus of an eye to be examined in which color adjustments are easily made to display an image in desired colors. The fundus camera is provided with: a photographing optical system having a photographing element for photoelectrically photographing the fundus; a monitor which displays an image of the photographed fundus illuminated in illumination light from an illumination light source for photographing; a color adjustment data input unit which inputs color adjustment data for making a color adjustment to the image to be displayed on the monitor; a color adjustment unit which makes the color adjustment to the image based on the inputted color adjustment data; and a storage unit which stores data about the image associated with data about its colors.Type: GrantFiled: November 29, 2001Date of Patent: November 25, 2003Assignee: Nidek Co., Ltd.Inventors: Naohisa Shibata, Miwako Torii
-
Patent number: 6575571Abstract: A fundus camera in which control parts of its devices are simplified, thereby ensuring improved operability. The fundus camera is provided with a monitor, an observation device, a photographing device, a storage device, a mode selection device, and an input device. The observation device photographs an image of the fundus illuminated with infrared illumination light for observation, and display the image on the monitor. The photographing device has a photoelectric photographing element and a focusing lens movable in a direction of an optical axis to focus the image of the fundus on the photoelectric photographing element, and photograph an image of the fundus illuminated with illumination light for photographing. The storage device stores the image of the fundus photographed by the photographing device.Type: GrantFiled: October 22, 2001Date of Patent: June 10, 2003Assignee: Nidek Co., Ltd.Inventor: Naohisa Shibata
-
Publication number: 20020176050Abstract: The present invention intends to provide a fundus camera which enables an examiner to easily place a position for presenting the fixation target at an intended position.Type: ApplicationFiled: May 22, 2002Publication date: November 28, 2002Applicant: NIDEK CO., LTD.Inventor: Naohisa Shibata
-
Publication number: 20020067919Abstract: A fundus camera for photographing a fundus of an eye to be examined in which color adjustments are easily made to display an image in desired colors. The fundus camera is provided with: a photographing optical system having a photographing element for photoelectrically photographing the fundus; a monitor which displays an image of the photographed fundus illuminated in illumination light from an illumination light source for photographing; a color adjustment data input unit which inputs color adjustment data for making a color adjustment to the image to be displayed on the monitor; a color adjustment unit which makes the color adjustment to the image based on the inputted color adjustment data; and a storage unit which stores data about the image associated with data about its colors.Type: ApplicationFiled: November 29, 2001Publication date: June 6, 2002Inventors: Naohisa Shibata, Miwako Torii
-
Publication number: 20020047989Abstract: A fundus camera in which control parts of its devices are simplified, thereby ensuring improved operability. The fundus camera is provided with a monitor, an observation device, a photographing device, a storage device, a mode selection device, and an input device. The observation device photographs an image of the fundus illuminated with infrared illumination light for observation, and display the image on the monitor. The photographing device has a photoelectric photographing element and a focusing lens movable in a direction of an optical axis to focus the image of the fundus on the photoelectric photographing element, and photograph an image of the fundus illuminated with illumination light for photographing. The storage device stores the image of the fundus photographed by the photographing device.Type: ApplicationFiled: October 22, 2001Publication date: April 25, 2002Inventor: Naohisa Shibata
-
Patent number: 5178250Abstract: A retainer retaining a plurality of rollers therein so as to permit their slight movement in a radial direction is disposed between cam grooves provided on the outer periphery of an inner cam secured to a rotary shaft and a roller abutment surface formed on the inner periphery of a gear relatively rotatably carried on the rotary shaft, and a dowel-admission groove is defined in a side of the retainer. A dowel provided in a sleeve can enter the dowel-admission groove. The groove is defined between the adjacent rollers retained in the retainer, or at least part of the inner cam, the rollers and the retainer are disposed in a recess made in the gear, thereby achieving a reduction in axial dimension of a roller synchro mechanism.Type: GrantFiled: April 12, 1991Date of Patent: January 12, 1993Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Noboru Ashikawa, Akihito Ohhashi, Masami Takano, Ken Mizokawa, Tetuya Komori, Naohisa Shibata