Patents by Inventor Yoshitoshi Ito
Yoshitoshi Ito 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: 20080007714Abstract: A personal identification system, which uses a vein pattern of a finger, optimizes the amount of light of a light source based on a captured finger image and emphasizes the vein pattern during image processing for identification.Type: ApplicationFiled: August 23, 2007Publication date: January 10, 2008Inventors: Miyuki Kono, Shin-ichiro Umemura, Takafumi Miyatake, Kunio Harada, Yoshitoshi Ito, Hironori Ueki
-
Patent number: 7286870Abstract: In an optical measurement system and imaging method adapted to measure in vivo information in a living body without harming the living body, light rays of a plurality of wavelengths which are modulated in intensity with a plurality of different frequencies are irradiated on a plurality of irradiation positions on the surface of a living body, and time-variable changes in living body transmitting light intensity levels corresponding to the respective wavelengths and the respective irradiation positions are measured at different positions on the surface of the living body. Light is utilized to image the results of the measurements, in which the measuring time is shortened by estimating fluctuation attributable to the living body, and the presence or absence of a change in measured signal can be decided easily by displaying an estimation signal and a measured signal at a time.Type: GrantFiled: July 9, 2001Date of Patent: October 23, 2007Assignee: Hitachi, Ltd.Inventors: Atsushi Maki, Hideaki Koizumi, Fumio Kawaguchi, Yuichi Yamashita, Yoshitoshi Ito
-
Patent number: 7277163Abstract: A personal identification system, which uses a vein pattern of a finger, optimizes the amount of light of a light source based on a captured finger image and emphasizes the vein pattern during image processing for identification.Type: GrantFiled: April 13, 2005Date of Patent: October 2, 2007Assignee: Hitachi, Ltd.Inventors: Miyuki Kono, Shin-ichiro Umemura, Takafumi Miyatake, Kunio Harada, Yoshitoshi Ito, Hironori Ueki
-
Publication number: 20070195330Abstract: A light emission section includes light generators which are operated on the basis of drive signals from a controller so as to emit near infrared interferable light beams having different specific wavelengths to a light interference section. The light interference section includes a beam splitter having a low-reflection region. The beam splitter allows a most portion of the near infrared interferable light beams to propagate toward an object to be examined, and reflects a portion of the near infrared interferable light beams to a movable mirror. The beam splitter causes interference between measurement light reflected by the object and reference light reflected by the movable mirror, and the resultant interference light propagates to a light detection section. The light detection section receives the interference light and calculates predetermined information regarding the object by making use of the quantity distribution of the interference light. A display section displays the calculated information.Type: ApplicationFiled: January 5, 2007Publication date: August 23, 2007Applicant: SPECTRATECH INC.Inventors: Mitsuo OHASHI, Yoshitoshi ITO
-
Publication number: 20050185827Abstract: A personal identification system, which uses a vein pattern of a finger, optimizes the amount of light of a light source based on a captured finger image and emphasizes the vein pattern during image processing for identification.Type: ApplicationFiled: April 13, 2005Publication date: August 25, 2005Inventors: Miyuki Kono, Shin-ichiro Umemura, Takafumi Miyatake, Kunio Harada, Yoshitoshi Ito, Hironori Ueki
-
Publication number: 20050171440Abstract: In an optical measurement system and imaging method adapted to measure in vivo information in a living body without harming the living body, light rays of a plurality of wavelengths which are modulated in intensity with a plurality of different frequencies are irradiated on a plurality of irradiation positions on the surface of a living body, and time-variable changes in living body transmitting light intensity levels corresponding to the respective wavelengths and the respective irradiation positions are measured at different positions on the surface of the living body. Light is utilized to image the results of the measurements, in which the measuring time is shortened by estimating fluctuation attributable to the living body, and the presence or absence of a change in measured signal can be decided easily by displaying an estimation signal and a measured signal at a time.Type: ApplicationFiled: January 19, 2005Publication date: August 4, 2005Inventors: Atsushi Maki, Hideaki Koizumi, Fumio Kawaguchi, Yuichi Yamashita, Yoshitoshi Ito
-
Publication number: 20050148857Abstract: In an optical measurement system and imaging method adapted to measure in vivo information in a living body without harming the living body, light rays of a plurality of wavelengths which are modulated in intensity with a plurality of different frequencies are irradiated on a plurality of irradiation positions on the surface of a living body, and time-variable changes in living body transmitting light intensity levels corresponding to the respective wavelengths and the respective irradiation positions are measured at different positions on the surface of the living body. Light is utilized to image the results of the measurements, in which the measuring time is shortened by estimating fluctuation attributable to the living body, and the presence or absence of a change in measured signal can be decided easily by displaying an estimation signal and a measured signal at a time.Type: ApplicationFiled: January 19, 2005Publication date: July 7, 2005Inventors: Atsushi Maki, Hideaki Koizumi, Fumio Kawaguchi, Yuichi Yamashita, Yoshitoshi Ito
-
Patent number: 6912045Abstract: A personal identification system, which uses a vein pattern of a finger, optimizes the amount of light of a light source based on a captured finger image and emphasizes the vein pattern during image processing for identification.Type: GrantFiled: December 12, 2003Date of Patent: June 28, 2005Assignee: Hitachi, LtdInventors: Miyuki Kono, Shin-ichiro Umemura, Takafumi Miyatake, Kunio Harada, Yoshitoshi Ito, Hironori Ueki
-
Publication number: 20050131303Abstract: In an optical measurement system and imaging method adapted to measure in vivo information in a living body without harming the living body, light rays of a plurality of wavelengths which are modulated in intensity with a plurality of different frequencies are irradiated on a plurality of irradiation positions on the surface of a living body, and time-variable changes in living body transmitting light intensity levels corresponding to the respective wavelengths and the respective irradiation positions are measured at different positions on the surface of the living body. Light is utilized to image the results of the measurements, in which the measuring time is shortened by estimating fluctuation attributable to the living body, and the presence or absence of a change in measured signal can be decided easily by displaying an estimation signal and a measured signal at a time.Type: ApplicationFiled: January 19, 2005Publication date: June 16, 2005Inventors: Atsushi Maki, Hideaki Koizumi, Fumio Kawaguchi, Yuichi Yamashita, Yoshitoshi Ito
-
Patent number: 6895269Abstract: A device for controlling equipment includes at least one light projector adapted to project light onto a head of a living body. A light collecting section for collecting the light having passed through the head, a light measuring section for measuring an intensity of the light collected by the light collecting section, a memory section for storing a previous history of changes of the intensity of the light measured, a signal judging section for judging if both the intensity of the light measured by said light measuring section and the previous history of changes of the intensity of the light satisfy a predetermined condition, a displaying section for displaying the intensity of the light measured and a result obtained by the signal judging section, and a control signal generating section for generating a control signal for external equipment.Type: GrantFiled: November 14, 2001Date of Patent: May 17, 2005Assignee: Hitachi, Ltd.Inventors: Yoshitoshi Ito, Hideaki Koizumi, Atsushi Maki, Yuichi Yamashita, Tsuyoshi Yamamoto
-
Patent number: 6813010Abstract: A personal identification system, which uses a vein pattern of a finger, optimizes the amount of light of a light source based on a captured finger image and emphasizes the vein pattern during image processing for identification.Type: GrantFiled: September 18, 2001Date of Patent: November 2, 2004Assignee: Hitachi, LTDInventors: Miyuki Kono, Shin-ichiro Umemura, Takafumi Miyatake, Kunio Harada, Yoshitoshi Ito, Hironori Ueki
-
Publication number: 20040120556Abstract: A personal identification system, which uses a vein pattern of a finger, optimizes the amount of light of a light source based on a captured finger image and emphasizes the vein pattern during image processing for identification.Type: ApplicationFiled: December 12, 2003Publication date: June 24, 2004Applicant: HITACHI, LTDInventors: Miyuki Kono, Shin-Ichiro Umemura, Takafumi Miyatake, Kunio Harada, Yoshitoshi Ito, Hironori Ueki
-
Patent number: 6723047Abstract: It has long been unclear in what degree the brain should be activated and how much the blood volume should be varied for controlling a signal by measuring the concentration of metabolic substance in the tissue or change of concentration thereof using the light and by using the result of measurement. The present invention provides an optical measuring system which can present the concentration of metabolic substance in the tissue which may be detected with a subject by itself or the target value of change of the concentration. Thereby, it is now possible for the subject by itself to more easily detect and control the concentration of metabolic substance in the tissue or change of concentration thereof. As a result, cerebral information can be extracted in direct to realize various applications such as control of the game machines and welfare facilities.Type: GrantFiled: December 7, 2001Date of Patent: April 20, 2004Assignee: Hitachi, Ltd.Inventors: Tsuyoshi Yamamoto, Atsushi Maki, Yoshitoshi Ito, Yuichi Yamashita, Hideaki Koizumi
-
Publication number: 20020048014Abstract: A personal identification system, which uses a vein pattern of a finger, optimizes the amount of light of a light source based on a captured finger image and emphasizes the vein pattern during image processing for identification.Type: ApplicationFiled: September 18, 2001Publication date: April 25, 2002Applicant: Hitachi, Ltd.Inventors: Miyuki Kono, Shin-ichiro Umemura, Takafumi Miyatake, Kunio Harada, Yoshitoshi Ito, Hironori Ueki
-
Publication number: 20020028997Abstract: A device for controlling equipment includes at least one light projector adapted to project light onto a head of a living body. A light collecting section for collecting the light having passed through the head, a light measuring section for measuring an intensity of the light collected by the light collecting section, a memory section for storing a previous history of changes of the intensity of the light measured, a signal judging section for judging if both the intensity of the light measured by said light measuring section and the previous history of changes of the intensity of the light satisfy a predetermined condition, a displaying section for displaying the intensity of the light measured and a result obtained by the signal judging section, and a control signal generating section for generating a control signal for external equipment.Type: ApplicationFiled: November 14, 2001Publication date: March 7, 2002Inventors: Yoshitoshi Ito, Hideaki Koizumi, Atsushi Maki, Yuichi Yamashita, Tsuyoshi Yamamoto
-
Publication number: 20010047131Abstract: Light rays of a plurality of wavelengths which are modulated in intensity with a plurality of different frequencies are irradiated on a plurality of irradiation positions on the surface of a living body, and time-variable changes in living body transmitting light intensity levels corresponding to the respective wavelengths and the respective irradiation positions are measured at different positions on the surface of the living body. After completion of the measurement or during the measurement, changes in concentration values of absorbers in the living body are determined from the living body transmitting light intensity levels of the plurality of wavelengths detected at the respective detection points and a measuring point is set on a perpendicular extending through an intermediate point between the incident point and each detection point so as to image a function of the living body.Type: ApplicationFiled: July 9, 2001Publication date: November 29, 2001Inventors: Atsushi Maki, Hideaki Koizumi, Fumio Kawaguchi, Yuichi Yamashita, Yoshitoshi Ito
-
Patent number: 6321110Abstract: A device for controlling equipment includes a light projector adapted to project light onto a head of a living body, a light collecting device for collecting the light having passed through the head from the light projector, a light measuring device for measuring an intensity of the light collected by the light collecting device, a memory device for storing a previous history of changes of the intensity of the light measured by the light measuring device, a signal judging circuit for judging if both the intensity of the light measured by the light measuring device and the previous history of changes of the intensity of the light satisfy a predetermined condition, a display device for displaying the intensity of the light measured by the light measuring device and a result obtained by the signal judging circuit, and a control signal generating circuit for generating a control signal to be supplied to an external equipment if the predetermined condition is satisfied.Type: GrantFiled: August 30, 1999Date of Patent: November 20, 2001Assignee: Hitachi, Ltd.Inventors: Yoshitoshi Ito, Hideaki Koizumi, Atsushi Maki, Yuichi Yamashita, Tsuyoshi Yamamoto
-
Patent number: 6282438Abstract: Light rays of a plurality of wavelengths which are modulated in intensity with a plurality of different frequencies are irradiated on a plurality of irradiation positions on the surface of a living body, and time-variable changes in living body transmitting light intensity levels corresponding to the respective wavelengths and the respective irradiation positions are measured at different positions on the surface of the living body. After completion of the measurement or during the measurement, changes in concentration values of absorbers in the living body are determined from the living body transmitting light intensity levels of the plurality of wavelengths detected at the respective detection points and a measuring point is set on a perpendicular extending through an intermediate point between the incident point and each detection point so as to image a function of the living body.Type: GrantFiled: December 2, 1998Date of Patent: August 28, 2001Assignee: Hitachi, Ltd.Inventors: Atsushi Maki, Hideaki Koizumi, Fumio Kawaguchi, Yuichi Yamashita, Yoshitoshi Ito
-
Patent number: 6128517Abstract: Light rays of a plurality of wavelengths which are modulated in intensity with a plurality of different frequencies are irradiated on a plurality of irradiation positions on the surface of a living body, and time-variable changes in living body transmitting light intensity levels corresponding to the respective wavelengths and the respective irradiation positions are measured at different positions on the surface of the living body. After completion of the measurement or during the measurement, changes in concentration values of absorbers in the living body are determined from the living body transmitting light intensity levels of the plurality of wavelengths detected at the respective detection points and a measuring point is set on a perpendicular extending through an intermediate point between the incident point and each detection point so as to image a function of the living body.Type: GrantFiled: September 8, 1998Date of Patent: October 3, 2000Assignee: Hitachi, Ltd.Inventors: Atsushi Maki, Hideaki Koizumi, Fumio Kawaguchi, Yuichi Yamashita, Yoshitoshi Ito
-
Patent number: 5803909Abstract: Light rays of a plurality of wavelengths which are modulated in intensity with a plurality of different frequencies are irradiated on a plurality of irradiation positions on the surface of a living body, and time-variable changes in living body transmitting light intensity levels corresponding to the respective wavelengths and the respective irradiation positions are measured at different positions on the surface Changes in concentration values of absorbers are determined from the living body transmitting light intensity levels and a measuring point is set on a perpendicular extending through an intermediate point between the incident point and each detection point to image a function of the living body.Type: GrantFiled: October 6, 1995Date of Patent: September 8, 1998Assignee: Hitachi, Ltd.Inventors: Atsushi Maki, Hideaki Koizumi, Fumio Kawaguchi, Yuichi Yamashita, Yoshitoshi Ito