Patents by Inventor Yutaka Yamashita
Yutaka Yamashita 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: 20150169933Abstract: In measurement data selection, when a vector composed of measurement data obtained for respective combinations of light emitting positions, light detection positions, and resolving times in a time-resolved waveform is given as y, a vector in which pixel values of learning image data are components is given as x, and a system matrix for calculating internal image data from the measurement data is given as A1, the vector y which meets the conditional expressions (2) and (3) min?y?00??(2), ?x?A1Ty?22??2??(3) or the conditional expression (4) min(?y?00+??x?A1Ty?22)??(4) is determined, and upon measurement of a subject, only the measurement data corresponding to nonzero components of the vector y is used to prepare the internal image data.Type: ApplicationFiled: June 27, 2013Publication date: June 18, 2015Inventors: Hiroyuki Kudo, Naoya Saito, Yukio Ueda, Kenji Yoshimoto, Yutaka Yamashita
-
Publication number: 20140357998Abstract: A mammography device is disclosed. The mammography device includes a container configured to surround the breast and a plurality of optical fibers attached to be directed inward in the container and configured to perform radiation and detection of light. The container has a base member having an opening, a plurality of annular members continuously disposed to come in communication with the opening, and a bottom member disposed inside the annular member spaced the farthest distance from the base member. The annular members and the bottom member are configured to relatively displace the adjacent annular member on the side of the base member or the base member in a communication direction. Some of the plurality of optical fibers is attached to the plurality of annular members.Type: ApplicationFiled: November 9, 2012Publication date: December 4, 2014Inventors: Toshihiko Suzuki, Yutaka Yamashita, Yukio Ueda, Etsuko Yamaki, Daisuke Yamashita, Kenji Yoshimoto, Harumi Sakahara, Hiroyuki Ogura, Hatsuko Nasu
-
Patent number: 8845295Abstract: A turbine bucket for a steam turbine low-pressure final stage has an exhaust area exceeding 9.6 m2 and 13.8 m2 in steam-turbine final-stage buckets for a rated speed 3600 rpm and 300 rpm machines, respectively. The turbine bucket is made of martensite steel. A blade portion of the turbine bucket has a suction surface 7 and a pressure surface 8 which are each formed, at a turbine blade root, of three areas consisting of a steam inlet side area 12 with curvature, a steam outlet side area 13 with curvature and an approximately straightly formed area located between the two areas.Type: GrantFiled: January 23, 2008Date of Patent: September 30, 2014Assignee: Mitsubishi Hitachi Power Systems, Ltd.Inventors: Yutaka Yamashita, Shigeki Senoo, Eiji Saito, Takeshi Kudo, Tateki Nakamura
-
Publication number: 20140190011Abstract: A turbine design method that can easily construct a turbine stage structure in which an unsteady force acting on a rotor blade can be reduced and degradation in performance and increase in rotor shaft length can be prevented is provided. Unsteady forces and exciting forces by the potential field interaction acting on the rotor blade are respectively obtained, exciting forces by the wake interaction acting on the rotor blade are obtained, the exciting forces by the potential field interaction and the wake interaction are mathematically expressed, the unsteady force acting on the rotor blade when the distance between stator and rotor blades is an arbitrary value is calculated, and the distance between stator and rotor blades is determined based on a calculation result.Type: ApplicationFiled: May 23, 2012Publication date: July 10, 2014Applicant: Hitachi, Ltd.Inventors: Tomomi Tanaka, Yoshio Shikano, Yutaka Yamashita
-
Patent number: 8774489Abstract: There is provided an ophthalmology information processing apparatus that allows to easily grasp a change in each part in continuously captured ophthalmology images. The ophthalmology information processing apparatus reads out a plurality of continuous captured images stored in a storage unit. An image analysis unit aligns the captured images. The ophthalmology information processing apparatus calculates the variation and position information of the pixel information of each pixel between the captured images based on the alignment information. An image generation unit generates a three-dimensional image which is displayed on a display unit simultaneously with the captured images.Type: GrantFiled: February 29, 2012Date of Patent: July 8, 2014Assignee: Canon Kabushiki KaishaInventor: Yutaka Yamashita
-
Publication number: 20140132920Abstract: Selection items which can be executed by an ophthalmologic application are displayed on a display portion on an ophthalmologic apparatus, and can be selected and executed by an operation portion on the ophthalmologic apparatus, thereby providing an ophthalmologic information process system and program which can reduce load on the operator and increase the overall throughput of examination. An ophthalmologic application transmits executable selection item information to the ophthalmologic apparatus and causes the ophthalmologic apparatus to display the information. Selection of one of the displayed selection items is executed by operation on the ophthalmologic apparatus. The behavior of the application is then controlled in accordance with the selection item.Type: ApplicationFiled: October 31, 2013Publication date: May 15, 2014Applicant: CANON KABUSHIKI KAISHAInventor: Yutaka Yamashita
-
Publication number: 20140132927Abstract: A ophthalmic apparatus includes: an imaging unit configured to obtain, through a photographing optical system, an image of an eye to be examined which is illuminated with illumination light from an observation light source of an illumination optical system; a display unit configured to display the image obtained by the imaging unit; and an image processing unit configured to display an image of the eye on the display unit at a display magnification corresponding to an observation portion of the eye or a display magnification corresponding to operation of the imaging unit.Type: ApplicationFiled: October 31, 2013Publication date: May 15, 2014Applicant: CANON KABUSHIKI KAISHAInventor: Yutaka Yamashita
-
Publication number: 20140135620Abstract: The bioinstrumentation apparatus includes a light irradiation unit irradiating a measurement region with light, a light detection unit detecting diffused light from the measurement region, and a computing unit generating a reconstructed image for the interior of the measurement region. The computing unit calculates J coefficients wj set for every pixel of the reconstructed image and more than 0 and not more than 1 (where J is the number of pixels of the reconstructed image) and carries out successive approximation computation by the following iterative formula xj(k+1)=xj(k)+wjdj(k) (where k is an integer from 1 to N, N is the number of times of iterative computation, xj(k) is a pixel value of the jth pixel on the kth iterative computation, and dj(k) is an update amount of the jth pixel on the kth iterative computation) to generate the reconstructed image.Type: ApplicationFiled: June 28, 2012Publication date: May 15, 2014Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Hiroyuki Kudo, Naoya Saito, Yukio Ueda, Kenji Yoshimoto, Yutaka Yamashita
-
Patent number: 8603350Abstract: A manufacturing method is provided for manufacturing a substrate for information storage media having various properties that are demanded for a next generation of information storage media substrate purposes exemplified by perpendicular magnetic recording systems, etc., and above all, having high fracture toughness and a smooth surface at low cost. The method of manufacturing a substrate for information storage media includes a step of preparing glass material of a plate shape containing SiO2 component, Al2O3 component, and R?2O component, R? being at least one selected from Li, Na, and K, and the step of lapping includes at least one sub-step of lapping the glass material with a diamond pad.Type: GrantFiled: July 14, 2010Date of Patent: December 10, 2013Assignee: Ohara inc.Inventors: Naoyuki Goto, Toshitaka Yagi, Yutaka Yamashita
-
Publication number: 20130253322Abstract: A breast measurement apparatus comprises a receptacle for surrounding a breast; a plurality of optical fibers for irradiating the breast with examination light and detecting transmitted scattered light from the breast; an inner image generation unit for generating an optical CT image concerning the breast according to a detection signal of the transmitted scattered light; an ultrasonic probe, arranged so as to face the inside of the receptacle, for scanning the breast with an ultrasonic wave and receiving a reflected wave from the breast; an image generation unit for generating an ultrasonic image concerning the breast according to the reflected wave; and a mechanism for injecting and discharging a liquid interface agent into and from the inside of the receptacle.Type: ApplicationFiled: October 18, 2011Publication date: September 26, 2013Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Toshihiko Suzuki, Yutaka Yamashita, Yukio Ueda, Etsuko Yamaki, Daisuke Yamashita, Kenji Yoshimoto, Harumi Sakahara, Hiroyuki Ogura, Hatsuko Nasu
-
Publication number: 20130100449Abstract: Light irradiates one light incident position on the surface of a scattering-absorption body. The light that propagates through the interior of the scattering-absorption body is detected at one light detecting position on the surface of the scattering-absorption body. On the basis of a light detection signal, a temporal profile of the light intensity of the detected light is acquired, and on the basis of the temporal profile, an mean optical path length of the light in the interior of the scattering-absorption body and information relating to the amount of substance to be measured in a region to be measured are calculated. The information relating to the amount of substance to be measured is corrected on the basis of the mean optical path length, such that the longer the mean optical path length, the greater the amount of substance to be measured is.Type: ApplicationFiled: March 29, 2011Publication date: April 25, 2013Applicant: Hamamatsu Photonics K.K.Inventors: Etsuko Yamaki, Yutaka Yamashita, Motoki Oda, Hiroaki Suzuki, Toshihiko Suzuki, Hiroshi Watanabe, Shunsaku Koga
-
Patent number: 8279443Abstract: A bioinstrumentation apparatus irradiates light onto a measured region of a subject, detects diffused light to acquire internal information on the measured region, and includes: a container holding a light transmitting medium; a light irradiation unit including a plurality of light emitting ends fixed to the container and irradiating a first light and a second light that mutually differ in wavelength onto the measured region that is immersed in the medium; a light detection unit including a plurality of light detecting ends fixed to the container and detecting the diffused light from the measured region; and a computing unit computing the internal information based on an output signal from the light detection unit; the wavelength of the first light being a wavelength at which an absorption coefficient of the measured region and a mean value of absorption coefficient of the medium are substantially equal, the wavelength of the second light being a wavelength at which the absorption coefficient of the measuredType: GrantFiled: October 10, 2008Date of Patent: October 2, 2012Assignee: Hamamatsu Photonics K.K.Inventors: Yukio Ueda, Yutaka Yamashita
-
Publication number: 20120237108Abstract: There is provided an ophthalmology information processing apparatus that allows to easily grasp a change in each part in continuously captured ophthalmology images. The ophthalmology information processing apparatus reads out a plurality of continuous captured images stored in a storage unit. An image analysis unit aligns the captured images. The ophthalmology information processing apparatus calculates the variation and position information of the pixel information of each pixel between the captured images based on the alignment information. An image generation unit generates a three-dimensional image which is displayed on a display unit simultaneously with the captured images.Type: ApplicationFiled: February 29, 2012Publication date: September 20, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Yutaka Yamashita
-
Patent number: 8127788Abstract: A parts assembly includes a housing including a first part assembly hole on which a first apparatus component is assembled, the first apparatus component being fixed to the housing by a caulking for forming a caulking portion by a deformation of a bearing surface of the housing on which the first apparatus component is seated. The housing includes a second part assembly hole provided in the vicinity of the caulking portion and on which a second apparatus component is assembled. The housing includes a sacrificial deformation portion deformed by a force applied to the housing when the bearing surface is deformed by the caulking, the sacrificial deformation portion attenuating a force propagated to a portion including the second part assembly hole where the second apparatus component is assembled.Type: GrantFiled: March 19, 2009Date of Patent: March 6, 2012Assignee: Advics Co., Ltd.Inventors: Yutaka Yamashita, Fumitoshi Koyama
-
Publication number: 20110063624Abstract: A bioinstrumentation apparatus irradiates light onto a measured region of a subject, detects diffused light to acquire internal information on the measured region, and includes: a container holding a light transmitting medium; a light irradiation unit including a plurality of light emitting ends fixed to the container and irradiating a first light and a second light that mutually differ in wavelength onto the measured region that is immersed in the medium; a light detection unit including a plurality of light detecting ends fixed to the container and detecting the diffused light from the measured region; and a computing unit computing the internal information based on an output signal from the light detection unit; the wavelength of the first light being a wavelength at which an absorption coefficient of the measured region and a mean value of absorption coefficient of the medium are substantially equal, the wavelength of the second light being a wavelength at which the absorption coefficient of the measuredType: ApplicationFiled: October 10, 2008Publication date: March 17, 2011Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Yukio Ueda, Yutaka Yamashita
-
Publication number: 20110011833Abstract: A manufacturing method is provided for manufacturing a substrate for information storage media having various properties that are demanded for a next generation of information storage media substrate purposes exemplified by perpendicular magnetic recording systems, etc., and above all, having high fracture toughness and a smooth surface at low cost. The method of manufacturing a substrate for information storage media includes a step of preparing glass material of a plate shape containing SiO2 component, Al2O3 component, and R?2O component, R? being at least one selected from Li, Na, and K, and the step of lapping includes at least one sub-step of lapping the glass material with a diamond pad.Type: ApplicationFiled: July 14, 2010Publication date: January 20, 2011Applicant: OHARA INC.Inventors: Naoyuki GOTO, Toshitaka YAGI, Yutaka YAMASHITA
-
Publication number: 20100185187Abstract: The light irradiation device 1 is provided with a laser light source 10 for generating laser light, a light source for detection light 20 for generating detection light of a predetermined wavelength, an optical fiber 30 having a FBG 32 for inputting laser light on one end face 30a and emitting the light from the other end face 30b to radiate it to an object 3, inputting detection light on the one end face 30a and also reflecting the light of a predetermined wavelength adjacent to the other end face 30b, a light detector 50 for detecting an intensity of detection light reflected by the FBG 32 and emitted from the one end face 30a, and a signal processing unit 60 for detecting an irradiation state of the laser light to the object 3 based on an intensity of the thus detected detection light. The laser light generated from the laser light source 10 is light other than that of a wavelength reflected by the FBG 32.Type: ApplicationFiled: July 17, 2007Publication date: July 22, 2010Applicant: Hamamatsu Photonics K.K.Inventors: Daisuke Yamashita, Yutaka Yamashita, Toyohiko Yamauchi, Hiroyuki Okada
-
Publication number: 20090270846Abstract: The position of a metal marker 5 relative to an optical fiber 6 is fixed, and the metal marker 5 can be moved up close to a target site such as a thrombus. It is preferable that the position, in an optical fiber longitudinal direction, of a front-end face of the optical fiber 6 is coincident with the position, in an optical fiber longitudinal direction, of a front-end face of the metal marker 5. More specifically, since the distance between the target site and the front end of the optical fiber 6 is known by radiography, it becomes unnecessary to use a large quantity of contrast agent and irradiate a laser beam depending on skill and intuition, and therefore an effective laser beam irradiation becomes possible.Type: ApplicationFiled: October 25, 2006Publication date: October 29, 2009Applicants: Teiji Nakayama, Hamamatsu Photonics K.K.Inventors: Hiroyuki Okada, Teiji Nakayama, Kazuo Umemura, Daisuke Yamashita, Yutaka Yamashita, Katsuhiro Kobayashi
-
Patent number: 7600983Abstract: A pump housing supporting a driving shaft has a plurality of cylinder bores extending radially and arranged at substantially regular intervals around an outer periphery of the driving shaft. Each cylinder bore has a plunger fitted therein, which reciprocates in response to a rotation of the driving shaft. An inlet, an inlet valve, an outlet, and an outlet valve are provided for each plunger. Fluid flowing from an inlet port provided in the pump housing flows into each inlet, and moreover, fluid flowing from each outlet passes through an outlet passage and flows into an outlet port provided in the pump housing. The outlet passage has a plurality of communication holes corresponding to the outlet valves. Outlet ends of the communication holes converge on one spot in the pump housing.Type: GrantFiled: November 10, 2005Date of Patent: October 13, 2009Assignee: Advics Co., Ltd.Inventors: Yutaka Yamashita, Kenichi Suzuki, Masahiko Abe
-
Publication number: 20090242049Abstract: A parts assembly includes a housing including a first part assembly hole on which a first apparatus component is assembled, the first apparatus component being fixed to the housing by means of a caulking for forming a caulking portion by a deformation of a bearing surface of the housing on which the first apparatus component is seated. The housing includes a second part assembly hole provided in the vicinity of the caulking portion and on which a second apparatus component is assembled. The housing includes a sacrificial deformation portion deformed by a force applied to the housing when the bearing surface is deformed by means of the caulking, the sacrificial deformation portion attenuating a force propagated to a portion including the second part assembly hole where the second apparatus component is assembled.Type: ApplicationFiled: March 19, 2009Publication date: October 1, 2009Inventors: Yutaka YAMASHITA, Fumitoshi KOYAMA