Patents by Inventor Tsuyoshi Nakagawa
Tsuyoshi Nakagawa 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: 20130060120Abstract: An electrocardiograph includes first and second induction electrodes, a signal difference generation section, an electrocardiographic detection section, a signal applying section, and a contact detection section. The signal difference generation section generates a potential difference between a signal from the first induction electrode and a signal from the second induction electrode as a signal difference. The electrocardiographic detection section detects an electrocardiographic complex of a subject based on the signal difference. The signal applying section applies a first signal to the first induction electrode and a second signal to the second induction electrode. The first signal has a property different from the electrocardiographic complex. The second signal has a property different from the electrocardiographic complex and the first signal. The contact detection section detects a contact state of the subject to the first and second induction electrodes based on the signal difference.Type: ApplicationFiled: August 28, 2012Publication date: March 7, 2013Applicant: DENSO CORPORATIONInventors: Kouki FUTATSUYAMA, Tsuyoshi Nakagawa, Harutsugu Fukumoto
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Publication number: 20120095358Abstract: A living body state monitor apparatus includes: a living body information acquisition device to acquire living body information containing an electrocardiography waveform and a pulse waveform from a user; an irregular heartbeat detection section to detect an irregular heartbeat from the electrocardiography waveform; and a pulse wave feature quantity extraction section to extract a pulse wave feature quantity from a pulse wave corresponding to the irregular heartbeat. Further, a living body state determination section is included to determine a danger degree on user's living body state using both of (A) information on kind and/or continued time period of an irregular heartbeat detected by the irregular heartbeat detection section, and (B) a pulse wave feature quantity extracted by the pulse wave feature quantity extraction section, and/or a variation of the extracted pulse wave feature quantity.Type: ApplicationFiled: October 13, 2011Publication date: April 19, 2012Applicants: DENSO CORPORATION, Nippon Medical School Foundation, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinya MATSUNAGA, Shinji Nanba, Tsuyoshi Nakagawa, Kouki Futatsuyama, Takao Katoh, Hiroshige Murata, Hiroshi Hayashi, Motohisa Osaka, Minoru Makiguchi
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Patent number: 8038450Abstract: A coaxial connector for connecting a coaxial plug includes an insulation housing including an insertion opening portion and a pressing deformation portion situated above the insertion opening portion; an outer conductive member including a pressing portion for pressing the pressing deformation portion; a stationary terminal including a contact portion; and a movable terminal fitted into the insertion opening portion and including a fixed portion and an elastic portion. The elastic portion is separated from the contact portion so that the movable terminal is electrically disconnected from the stationary terminal when the coaxial plug is inserted into the insulation housing. The elastic portion contacts with the central conductive member so that the movable terminal is electrically connected to the central conductive member when the coaxial plug is inserted into the insulation housing.Type: GrantFiled: March 25, 2010Date of Patent: October 18, 2011Assignee: Hirose Electric Co., LtdInventor: Tsuyoshi Nakagawa
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Patent number: 8038597Abstract: The instrument for an endoscope is an instrument for an endoscope is able to move reciprocally in the channel of the endoscope along a guide wire, and includes: a sheath portion having a guide lumen into which the guide wire is inserted and another lumen disposed along the guide lumen. The proximal end of the sheath portion is bifurcated into the first sheath portion having the guide lumen and the second sheath portion having the other lumen.Type: GrantFiled: June 30, 2006Date of Patent: October 18, 2011Assignee: Olympus Medical Systems Corp.Inventors: Tsuyoshi Nakagawa, Yutaka Yanuma, Yasushi Okoshi, Isao Sasaki
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Publication number: 20110136378Abstract: A coaxial connector to be attached to a coaxial change-over switch includes an insulated connector housing; an outer connector conductor provided outside the insulated connector housing and capable of connecting to an outer conductor of a coaxial cable; and a contact provided in the insulated connector housing to be movable for connecting to a center conductor of the coaxial cable. The contact has a first portion including a distal end portion and a second portion connected to the first portion via a bent section. The contact is mounted on a mounting section of the insulated connector housing, and is supported in a cantilever state at the second portion. The distal end portion is elastically displaced in a direction opposite to an attaching direction of the coaxial change-over switch when the distal end portion contacts with the coaxial change-over switch.Type: ApplicationFiled: December 7, 2010Publication date: June 9, 2011Inventors: Daisuke Yamakoshi, Tsuyoshi Nakagawa
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Patent number: 7945313Abstract: An heart rhythm monitoring device for a vehicle, which determines whether a driver has an arrhythmia includes a vehicle state determining portion that determines whether the vehicle is stopped; an electrode arranged on a steering wheel in a position where the driver grips the steering wheel; an electrocardiogram waveform obtaining portion that obtains a first electrocardiogram waveform from the electrode; and a signal processing and calculating portion that determines whether the heart rhythm of the driver is erratic based on the first electrocardiogram waveform. When the vehicle is in motion, the signal processing and calculating portion determines whether the heart rhythm of the driver is erratic based on the waveform component that is strong with respect to noise in the first electrocardiogram waveform.Type: GrantFiled: May 10, 2007Date of Patent: May 17, 2011Assignees: Toyota Jidosha Kabushiki Kaisha, Nippon Medical School Foundation, Denso CorporationInventors: Yoshitaka Fuwamoto, Takao Katoh, Tsuyoshi Nakagawa, Taiji Kawachi
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Publication number: 20100248539Abstract: A coaxial connector for connecting a coaxial plug includes an insulation housing including an insertion opening portion and a pressing deformation portion situated above the insertion opening portion; an outer conductive member including a pressing portion for pressing the pressing deformation portion; a stationary terminal including a contact portion; and a movable terminal fitted into the insertion opening portion and including a fixed portion and an elastic portion. The elastic portion is separated from the contact portion so that the movable terminal is electrically disconnected from the stationary terminal when the coaxial plug is inserted into the insulation housing. The elastic portion contacts with the central conductive member so that the movable terminal is electrically connected to the central conductive member when the coaxial plug is inserted into the insulation housing.Type: ApplicationFiled: March 25, 2010Publication date: September 30, 2010Inventor: Tsuyoshi NAKAGAWA
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Patent number: 7786184Abstract: An active energy ray curable resin composition for a sheet-like optical article capable of providing a cured material having a dynamic elastic modulus at 25° C. of 950 MPa or less and a dynamic elastic modulus at 60° C. of 100 MPa or more and a sheet-like optical article prepared from the resin composition are disclosed. The sheet-like optical article (e.g., prism sheet) has good heat resistance and extremely small warpage.Type: GrantFiled: October 12, 2005Date of Patent: August 31, 2010Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Shinji Makino, Tsuyoshi Nakagawa, Koichiro Sanefuji
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Patent number: 7777964Abstract: A plastic rod lens having a cylindrical shape with a radius R including a central axis; and an outer peripheral portion, wherein a refractive index nD decreases from the central axis to the outer peripheral portion, and the following requirements (1) to (3) are met: 43??1?60??(1) |{nA×?A/(nA?1)}?{nB×?B/(nB?1)}|<5??(2) n0?n1?0.01??(3) wherein n1, n0, nA, and nB represent refraction index nD in the outer peripheral portion, at the center, and at arbitrary points A and B, respectively, and ?1, ?A, and ?B represent Abbe number ? in the outer peripheral portion, and at the arbitrary points A and B, respectively.Type: GrantFiled: July 21, 2006Date of Patent: August 17, 2010Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Hiroshi Abe, Takashi Saeki, Tsuyoshi Nakagawa, Norifumi Hirota
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Patent number: 7672764Abstract: A physical response record system includes a main unit and various sensors for recording driver's conditions and vehicle operations by a driver. The driver's conditions in combination with the vehicle operations are used to determine a risky situation of the vehicle based on an averaged driver's condition and the like. The risky situation is further analyzed for detecting a risky object and stored as a record for later use.Type: GrantFiled: August 3, 2006Date of Patent: March 2, 2010Assignee: DENSO CORPORATIONInventors: Satomi Yoshioka, Ichiro Yoshida, Tsuyoshi Nakagawa
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Patent number: 7632123Abstract: A surface mount connector includes a housing and a movable terminal attached to the housing. The movable terminal includes a movable section to be movable relative to the housing, an adhering section connected to the movable section and having an adhering surface relative to the housing, and a connecting section connected to the adhering section via a joining section. The adhering surface includes a groove extending toward the movable section having a first width. The movable terminal further includes an opening portion connected to the groove. The opening portion extends in a first direction crossing a second direction that the adhering section is connected to the movable section and having a second width larger than the first width.Type: GrantFiled: August 7, 2008Date of Patent: December 15, 2009Assignee: Hirose Electric Co., Ltd.Inventor: Tsuyoshi Nakagawa
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Publication number: 20090257128Abstract: A plastic rod lens having a cylindrical shape with a radius R including a central axis; and an outer peripheral portion, wherein a refractive index nD decreases from the central axis to the outer peripheral portion, and the following requirements (1) to (3) are met: 43??1?60??(1) |{nA×?A/(nA?1)}?{nB×?B/(nB?1)}|<5??(2) n0?n1?0.01??(3) wherein n1, n0, nA, and nB represent refraction index nD in the outer peripheral portion, at the center, and at arbitrary points A and B, respectively, and ?1, ?A, and ?B represent Abbe number ? in the outer peripheral portion, and at the arbitrary points A and B, respectively.Type: ApplicationFiled: July 21, 2006Publication date: October 15, 2009Applicant: Mitsubishi Rayon Co., Ltd.Inventors: Hiroshi Abe, Takashi Saeki, Tsuyoshi Nakagawa, Norifumi Hirota
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Publication number: 20090221870Abstract: A drainage tube retainer 1 as an endoscopic treatment instrument includes a guide catheter 10 for slidably supporting a drainage tube 6 retained in a live organ through a channel; a pusher tube 11 disposed in the exterior of the guide catheter 10 and slidably supported by the guide catheter 10; and a pusher cap 13 provided to the pusher tube 11 for positioning the pusher tube 11 relative to the endoscope so that a direction in which the pusher tube 11 is inserted through the channel substantially coincides with a direction in which the guide catheter 10 is retracted from the pusher tube 11.Type: ApplicationFiled: January 19, 2006Publication date: September 3, 2009Inventors: Tsuyoshi Nakagawa, Yutaka Yanuma, Yoshimitsu Inoue, Makoto Suyama, Akihisa Iwabuchi
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Publication number: 20090105534Abstract: A treatment device for an endoscope has a tubular sheath portion having an inlet opening at the proximal end thereof and a long treatment device body provided with a basket at the distal end thereof, wherein the treatment device body is advanceably/retreatably inserted into the sheath portion through the inlet opening, and the basket is projected from and retreated into the distal end of the sheath portion by advancing and retreating the treatment device body relative to the sheath portion. The treatment device for an endoscope has an installation portion that is placed between an endoscope, at which forceps plug opening is provided, and the sheath portion and installs the sheath portion to the endoscope such that the inlet opening and the forceps plug opening are arranged opposite to each other on substantially the same line.Type: ApplicationFiled: January 19, 2006Publication date: April 23, 2009Inventors: Tsuyoshi Nakagawa, Yutaka Yanuma
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Publication number: 20090042427Abstract: A surface mount connector includes a housing and a movable terminal attached to the housing. The movable terminal includes a movable section to be movable relative to the housing, an adhering section connected to the movable section and having an adhering surface relative to the housing, and a connecting section connected to the adhering section via a joining section. The adhering surface includes a groove extending toward the movable section having a first width. The movable terminal further includes an opening portion connected to the groove. The opening portion extends in a first direction crossing a second direction that the adhering section is connected to the movable section and having a second width larger than the first width.Type: ApplicationFiled: August 7, 2008Publication date: February 12, 2009Inventor: Tsuyoshi Nakagawa
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Publication number: 20090030104Abstract: An active energy ray curable resin composition for a sheet-like optical article capable of providing a cured material having a dynamic elastic modulus at 25° C. of 950 MPa or less and a dynamic elastic modulus at 60° C. of 100 MPa or more and a sheet-like optical article prepared from the resin composition are disclosed. The sheet-like optical article (e.g., prism sheet) has good heat resistance and extremely small warpage.Type: ApplicationFiled: October 12, 2005Publication date: January 29, 2009Inventors: Shinji Makino, Tsuyoshi Nakagawa, Koichiro Sanefuji
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Publication number: 20080125803Abstract: This mucosa separation apparatus includes a first insertion portion inserted to the interior of a subject, an expansion portion disposed on a head portion of the first insertion portion, and which expands by infusion of a fluid, a passage formed within the first insertion portion and connected to the expansion portion, for supplying the fluid to the expansion portion, and a curving portion which makes a head portion of an instrument inserted to the interior of the subject curve with respect to a part of the instrument which is closer to a base portion of the instrument than the head portion thereof.Type: ApplicationFiled: November 26, 2007Publication date: May 29, 2008Inventors: Akihito SADAMASA, Yasuo MIYANO, Yutaka YANUMA, Ichiro TAKAHASHI, Kenji SHIBAKI, Tsutomu NAKAMURA, Tsuyoshi NAKAGAWA, Yasuhito KURA
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Publication number: 20070265540Abstract: An heart rhythm monitoring device for a vehicle, which determines whether a driver has an arrhythmia includes a vehicle state determining portion that determines whether the vehicle is stopped; an electrode arranged on a steering wheel in a position where the driver grips the steering wheel; an electrocardiogram waveform obtaining portion that obtains a first electrocardiogram waveform from the electrode; and a signal processing and calculating portion that determines whether the heart rhythm of the driver is erratic based on the first electrocardiogram waveform. When the vehicle is in motion, the signal processing and calculating portion determines whether the heart rhythm of the driver is erratic based on the waveform component that is strong with respect to noise in the first electrocardiogram waveform.Type: ApplicationFiled: May 10, 2007Publication date: November 15, 2007Inventors: Yoshitaka Fuwamoto, Takao Katoh, Tsuyoshi Nakagawa, Taiji Kawachi
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Patent number: 7274565Abstract: A labor of disconnecting many cables is omitted even when carrying a file basestation with an external storage loaded together with a main body. An information processing unit comprises: a main body having a CPU, a keyboard and a display unit; a file basestation with an external storage, such as an FD•D or a CD ROM•D, loaded; and a portreplicator with many connectors loaded. Removal of the main body alone from the portreplicator can omit the labor of disconnecting many cables connected to the portreplicator.Type: GrantFiled: April 26, 2006Date of Patent: September 25, 2007Assignee: Hitachi, Ltd.Inventors: Hideki Kamimaki, Yukihide Inagaki, Tsuyoshi Nakagawa, Koichi Kimura, Hideaki Gemma, Hitoshi Kawaguchi
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Publication number: 20070117435Abstract: The coaxial connector having a switch, which is mounted on a board, according to the invention includes an insulated housing having a hole that can receive a center conductor of a coaxial plug from the upper side, an outer conductor that is provided outside of the insulated housing and can be attached to/detached from an outer conductor of the coaxial plug, and a stationary terminal and a movable terminal, which are provided below the hole and can contact to/be away from each other. The stationary terminal has a contact section and the movable terminal has a securing section secured in the insulated housing and an elastic section that is arranged in the insulated housing through a insert hole provided in the insulated housing, extends like a cantilever from the securing section, can touch the center conductor of the coaxial plug and can contact with the contact section. In addition, the coaxial connector further includes a covering section to cover the insert hole.Type: ApplicationFiled: November 2, 2006Publication date: May 24, 2007Inventor: Tsuyoshi Nakagawa