Patents by Inventor Teiyuu Kimura
Teiyuu Kimura 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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Publication number: 20060167524Abstract: A current application apparatus includes a pair of electrodes, mounts the pair of electrodes on the head by uses of an electrode mounting member, and applies a specific current to the head through the pair of electrodes. The pair of electrode is mounted by the electrode mounting member on one side of a lateral center of the head in such a manner that the following conditions are satisfied. One electrode of the pair is located on a skin located backward of an ear, which is positioned on the one side of the lateral center of the head, and the other electrode of the pair is located on a skin of the head located on the one side of the lateral center of the head. The specific current applied to the head has one of a white noise waveform and a 1/f noise waveform.Type: ApplicationFiled: January 26, 2006Publication date: July 27, 2006Applicants: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Teiyuu Kimura, Minoru Makiguchi, Yoshiharu Yamamoto
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Publication number: 20060020452Abstract: A noise generator includes a noise intensity storage means for storing a noise intensity threshold of a noise, a noise intensity setting means for setting an optimum noise intensity based on the noise intensity threshold, a noise generation means for generating the noise based on the optimum noise intensity, and a noise output means for outputting the noise generated by the noise generation means. The noise generator determines the noise intensity threshold based on perception of the noise by a driver of an automotive vehicle.Type: ApplicationFiled: July 26, 2005Publication date: January 26, 2006Applicants: DENSO CORPORATIONInventors: Hiroto Nakatani, Teiyuu Kimura, Noriyuki Ozaki, Minoru Makiguchi, Yoshiharu Yamamoto
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Publication number: 20060017548Abstract: A visual recognition support system includes a noise area determination function for determining a noise area where a visual noise is outputted to improve sensitivity of visual recognition of an object in need of attention of an operator of a vehicle. The intensity of the visual noise is determined based on a threshold of the visual perception.Type: ApplicationFiled: July 19, 2005Publication date: January 26, 2006Inventors: Noriyuki Ozaki, Hiroto Nakatani, Teiyuu Kimura, Minoru Makiguchi
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Publication number: 20050246134Abstract: A driver's condition detection device is for detecting a first life information indicating a driver's degree of activity. The driver's condition classification device is for classifying the first life information into at least two regions. The driver's condition determination device is for determining the driver's condition based on a distribution of the first life information in the regions.Type: ApplicationFiled: April 26, 2005Publication date: November 3, 2005Inventors: Fumiya Nagai, Teiyuu Kimura, Katsuyoshi Nishii, Kazuhiro Sakai
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Publication number: 20050234351Abstract: A pulse wave sensor main unit is provided with a pair of band anchoring portions that are positioned in the direction of the circumference of the wrist and through which the band is passed. Strip-shaped band insertion holes are formed in the band anchoring portions. The band is an elastic long strip-shaped body. The band is formed of material such as rubber that is flexibly deformed when external force is applied and is restored to its original shape by its own elasticity when external force is removed. The band is so set that its thickness is larger than the dimension of the shorter sides of the band insertion holes and its width is larger than the dimension of the longer sides of the band insertion holes.Type: ApplicationFiled: April 15, 2005Publication date: October 20, 2005Inventors: Katsuyoshi Nishii, Teiyuu Kimura, Kazuhiro Sakai, Fumiya Nagai, Kazuya Inokawa
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Patent number: 6923769Abstract: In a clinical and physiological abnormality monitoring apparatus, and blood pressure monitoring apparatus detects a blood pressure abnormality and the like of a body by employing a pulse wave signal. A frequency analysis is carried out with respect to a pulse wave signal, while this pulse wave signal corresponds to time sequential data of pulse waves. As a result, both a C-frequency component indicative of a fluctuation component of a base line of the pulse wave signal, and also an A-frequency component representative of the respective pulse waves are acquired. A ratio C/A of power of a peak contained in the C-frequency component with respect to power of a peak contained in the A-frequency component is calculated to determine abnormality of the blood pressure.Type: GrantFiled: May 21, 2002Date of Patent: August 2, 2005Assignees: Denso CorporationInventors: Katsuyoshi Nishii, Teiyuu Kimura, Satoshi Takeuchi, Shinji Nanba, Junichiro Hayano
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Patent number: 6922577Abstract: An optical measuring device includes a sensor which emits light flashes toward a subject of detection with a light emitting element which is supplied with electric power from a rechargeable battery for a certain duration at certain intervals and receives reflected light from the subject with a light sensitive element. A subtractor subtracts a d.c. component from a sensed signal provided by the light sensitive element, thereby extracting a variation component. The subtractor has its output signal amplified with an amplifier, with the output thereof being A/D-converted with an A/D converter.Type: GrantFiled: February 10, 2003Date of Patent: July 26, 2005Assignee: Denso CorporationInventors: Tetsuya Nakashima, Yasuji Inobe, Seiji Nagakusa, Teiyuu Kimura
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Publication number: 20050080344Abstract: A microcomputer included in a physical condition monitoring system calculates the amount of autonomic nerve activity during sleep based on physical information during sleep collected by a physical information collecting device 1. The physical information contains heart rates, blood pressure, respiratory rate, and the amount of body movement. The microcomputer also receives various kinds of information including training conditions via an input device. Then, it displays the amount of autonomic nerve activity and the training conditions on a display device in a manner that connections between them are indicated.Type: ApplicationFiled: September 21, 2004Publication date: April 14, 2005Inventors: Katsuyoshi Nishii, Teiyuu Kimura, Kazuhiro Sakai, Masaaki Sugita
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Publication number: 20050075553Abstract: In a portable biological information monitor apparatus, a pulse wave detection signal obtained by light emission from a green LED and a body motion detection signal obtained by light emission from an infrared LED are detected as biological information. This biological information is analyzed to compute various barometers. In a wake normal mode of a set generation mode, body motion and pulse are calculated as wake evaluation barometers for evaluation of a test subject's status in wake. In a wake steady state motion mode, body motion, pulse, and pitch are calculated as motion evaluation barometers for evaluation of the test subject's status in steady state motion. In a sleep mode, body motion, pulse, and autonomic nervous function are calculated as sleep evaluation barometers for evaluation of the test subject's status in sleep. Necessary barometers are thereby generated regardless of the test subject's action using the portable monitor apparatus alone.Type: ApplicationFiled: October 5, 2004Publication date: April 7, 2005Inventors: Kazuhiro Sakai, Teiyuu Kimura, Katsuyoshi Nishii, Kazuya Inokawa, Tetsuya Nakashima
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Patent number: 6856829Abstract: A physiological condition detecting method detects pulse waves from the body of a patient, and creates the envelope of the pulse waves by connecting every peak of the pulse waves. It determines that the patient is in non-REM sleep, if the envelope fluctuates regularly. It determines that the patient is in REM sleep, if the envelope fluctuates irregularly. Further the method calculates and normalizes the amplitude and period of the envelope. It determines whether the patient has obstructive sleep apnea syndrome based on the normalized amplitude. It determines whether the patient has central sleep apnea syndrome based on the normalized period. It determines that the patient has mixed sleep apnea syndrome based on the normalized amplitude and the normalized period.Type: GrantFiled: August 24, 2001Date of Patent: February 15, 2005Assignees: Denso CorporationInventors: Rie Ohsaki, Teiyuu Kimura, Shinji Nanba, Junichiro Hayano, Toshiaki Shiomi
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Publication number: 20040193063Abstract: In an apparatus for measuring a biological condition of a living body, a light emitting unit emits individually first and second lights to a measurement portion of the living body. The first and second lights have first and second wavelengths, respectively. The first and second wavelengths are different from each other. A light receiving unit receives first and second reflection lights to generate first and second detection signals based on the first and second reflection lights, respectively. The first and second reflection lights are based on the first light reflected from the measurement portion and the second light reflected therefrom, respectively. The first and second detection signals have different characteristics from each other due to the difference between the first and second wavelengths. A measuring unit measures the biological condition based on the different characteristics of the first and second detection signals.Type: ApplicationFiled: February 26, 2004Publication date: September 30, 2004Inventors: Teiyuu Kimura, Taiji Kawachi, Kazuhiro Sakai
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Publication number: 20030158486Abstract: An optical measuring device includes a sensor which emits light flashes toward a subject of detection with a light emitting element which is supplied with electric power from a rechargeable battery for a certain duration at certain intervals and receives reflected light from the subject with a light sensitive element. A subtractor subtracts a d.c. component from a sensed signal provided by the light sensitive element, thereby extracting a variation component. The subtractor has its output signal amplified with an amplifier, with the output thereof being A/D-converted with an A/D converter.Type: ApplicationFiled: February 10, 2003Publication date: August 21, 2003Inventors: Tetsuya Nakashima, Yasuji Inobe, Seiji Nagakusa, Teiyuu Kimura
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Patent number: 6608562Abstract: A vital signal detecting apparatus comprises an attachable device to be attached to a finger, a sensor having a light-emitting device and a light-receiving device, and a transmitting circuit for transmitting a signal waveform as a pulse wave from the sensor to a pulse wave monitoring unit. The pulse wave detecting unit also has an attachment detecting circuit for detecting whether or not the attachable device is in an attached state by comparing a signal waveform obtained when the light-emitting device is on with a signal waveform obtained when the light-emitting device is off and an operation control circuit for controlling the operation of the sensor, the transmitting circuit and the attachment detecting circuit. Preferably, the light-transmitting plate is disposed above the light-emitting device and the light-receiving device to pass light therethrough, and the light transmitting plate may be an IR-cut filter capable of blocking light of wavelengths greater than 700 nm.Type: GrantFiled: August 30, 2000Date of Patent: August 19, 2003Assignee: Denso CorporationInventors: Teiyuu Kimura, Rie Ohsaki, Shinji Nanba, Satoshi Takeuchi, Seiichi Yamada, Satoru Kodama, Masao Hasegawa, Masahiko Ito, Tsukasa Koumura
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Patent number: 6605045Abstract: A pulse wave sensor includes a detecting element and a sensor body. The pulse wave sensor is worn on the back side of a user's wrist corresponding to the back of the user's hand. The detecting element includes a translucent member on its top, and the translucent member has a convex surface. The detecting element is attached on the back side of the user's wrist by a dedicated belt so that the convex surface of the translucent member is in intimate contact with the surface of the user's skin. The sensor body is attached on the back side of the user's wrist by another dedicated belt so that it is arranged on the detecting element. A cushion is arranged between the sensor body and the detecting element. The pulse wave sensor can stably detect the pulse wave without being affected by the movement of the user's wrist.Type: GrantFiled: May 11, 2001Date of Patent: August 12, 2003Assignee: Denso CorporationInventors: Rie Ohsaki, Teiyuu Kimura, Naoki Fukaya
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Patent number: 6496723Abstract: A method of obtaining information that corresponds to the R—R interval of electrocardiogram from the pulse-wave of a human body. The method is comprised of steps of detecting the pulse-wave of a human body in a predetermined period, differentiating the detected pulse-wave to provide a speed-pulse-wave, measuring intervals of peaks of the speed-pulse-wave, and substituting the intervals of peaks of the speed-pulse-wave for the R—R interval of the electrocardiogram.Type: GrantFiled: August 28, 2000Date of Patent: December 17, 2002Assignee: Denso CorporationInventors: Taiji Kawachi, Tsuyoshi Nakagawa, Teiyuu Kimura, Rie Ohsaki
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Publication number: 20020183627Abstract: In a clinical and physiological abnormality monitoring apparatus, and blood pressure monitoring apparatus detects a blood pressure abnormality and the like of a body by employing a pulse wave signal. A frequency analysis is carried out with respect to a pulse wave signal, while this pulse wave signal corresponds to time sequential data of pulse waves. As a result, both a C-frequency component indicative of a fluctuation component of a base line of the pulse wave signal, and also an A-frequency component representative of the respective pulse waves are acquired. A ratio C/A of power of a peak contained in the C-frequency component with respect to power of a peak contained in the A-frequency component is calculated to determine abnormality of the blood pressure.Type: ApplicationFiled: May 21, 2002Publication date: December 5, 2002Inventors: Katsuyoshi Nishii, Teiyuu Kimura, Satoshi Takeuchi, Shinji Nanba, Junichiro Hayano
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Patent number: 6407389Abstract: An infrared rays detection apparatus including an optical window member having a characteristic that scatters noise light, which is capable of reducing an influence of noise light with a simple structure. An infrared rays detection apparatus includes: a condenser lens; an infrared rays image sensor made up of plural thermal detection elements; and a signal detection/process circuit (SDP circuit). The image sensor detects a thermal distribution of a predetermined area condensed by the condenser lens in a passenger room. The SDP circuit makes a thermal image data based on the thermal distribution detected by the image sensor. Various types of system control circuits control each of the vehicular system as described later based on the thermal image data provided from the SDP circuit. The condenser lens is formed so that noise light such as visible light is scattered thereby and that infrared rays is transmitted therethrough to the image sensor.Type: GrantFiled: March 16, 2000Date of Patent: June 18, 2002Assignee: Denso CorporationInventors: Katsuyoshi Nishii, Shinji Nanba, Teiyuu Kimura
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Publication number: 20020029000Abstract: A physiological condition detecting method detects pulse waves from the body of a patient, and creates the envelope of the pulse waves by connecting every peak of the pulse waves. It determines that the patient is in non-REM sleep, if the envelope fluctuates regularly. It determines that the patient is in REM sleep, if the envelope fluctuates irregularly. Further the method calculates and normalizes the amplitude and period of the envelope. It determines whether the patient has obstructive sleep apnea syndrome based on the normalized amplitude. It determines whether the patient has central sleep apnea syndrome based on the normalized period. It determines that the patient has mixed sleep apnea syndrome based on the normalized amplitude and the normalized period.Type: ApplicationFiled: August 24, 2001Publication date: March 7, 2002Inventors: Rie Ohsaki, Teiyuu Kimura, Shinji Nanba, Junichiro Hayano, Toshiaki Shiomi
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Publication number: 20010056243Abstract: A pulse wave sensor includes a detecting element and a sensor body. The pulse wave sensor is worn on the back side of a user's wrist corresponding to the back of the user's hand. The detecting element includes a translucent member on its top, and the translucent member has a convex surface. The detecting element is attached on the back side of the user's wrist by a dedicated belt so that the convex surface of the translucent member is in intimate contact with the surface of the user's skin. The sensor body is attached on the back side of the user's wrist by another dedicated belt so that it is arranged on the detecting element. A cushion is arranged between the sensor body and the detecting element. The pulse wave sensor can stably detect the pulse wave without being affected by the movement of the user's wrist.Type: ApplicationFiled: May 11, 2001Publication date: December 27, 2001Inventors: Rie Ohsaki, Teiyuu Kimura, Naoki Fukaya
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Patent number: 5781317Abstract: A method of producing a holographic optical element which is capable of imparting complex corrections to the holographic optical element and of effecting the exposure using a short optical path permitting little disturbance to be infiltrated. A correction holographic optical element 13 for correcting the characteristics of the holographic optical element is disposed in at least one of the optical paths of an object beam 35 and a reference beam 36 that fall on a photosensitive material 11. The object beam 35 may be one obtained by reflecting the reference beam 36 by a reflection-type holographic optical element such as a reflection-type master holographic optical element 12. In the case of a holographic optical element used for the head-up display, the correction holographic optical element 13 may be given characteristics for correcting the curvature of the windshield or characteristics for correcting color aberration.Type: GrantFiled: September 14, 1994Date of Patent: July 14, 1998Assignees: Nippondenso Co., Ltd., Nipon Soken Inc.Inventors: Naoyuki Kawazoe, Hiroshi Ando, Teiyuu Kimura, Satoshi Koike, Sadahisa Onimaru