Patents by Inventor Haruo Uemura
Haruo Uemura 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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Patent number: 8996324Abstract: A battery-state monitoring apparatus includes: a secondary battery 200 supplying an electric power to portable equipment 300; and an operation processing part 50 that can detect a battery state of the secondary battery 200 in a detection mode to detect the battery state of the secondary battery 200, the operation processing part using the secondary battery 200 as a power source, wherein the battery-state monitoring apparatus includes a start-up current detecting part 31 detecting a start-up of the portable equipment 300, and wherein the operation processing part 50 waits for a detection of the battery state in a standby mode in which power consumption is smaller than the detection mode until the start-up is detected by the start-up current detecting part 31, and, on the other hand, the operation processing part 50 detects, by intermittently performing a temporary return from the standby mode to the detection mode, the battery state of the secondary battery in a return period during which the return is made.Type: GrantFiled: July 7, 2009Date of Patent: March 31, 2015Assignees: Mitsumi Electric Co., Ltd., NTT DOCOMO, INC.Inventors: Yoshihide Majima, Mitsuhiro Takahashi, Kazuhiko Takeno, Haruo Uemura, Yasuyuki Kanai, Takayuki Kanai
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Patent number: 8749204Abstract: A battery condition detector configured to detect a micro short circuit of a rechargeable battery is disclosed. The battery condition detector includes a processing part configured to calculate the remaining capacity and the full-charge capacity of a rechargeable battery 200 and to determine the micro short circuit of the rechargeable battery 200 by detecting an overcharge of the rechargeable battery 200 based on a charged capacity charged during the charging of the rechargeable battery 200, the remaining capacity calculated at a calculation time immediately before the start of the charging, and the full-charge capacity calculated before the start of the charging; and a communications part 70 configured to output a signal according to the determination result of the processing part 50.Type: GrantFiled: September 9, 2009Date of Patent: June 10, 2014Assignees: Mitsumi Electric Co., Ltd., NTT DoCoMo, Inc.Inventors: Yoshihide Majima, Keiichi Kitamura, Kazuhiko Takeno, Yasuyuki Kanai, Haruo Uemura
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Patent number: 8228039Abstract: The present invention applies load to a portable telephone by charging and discharging a secondary battery conforming to the actual way of use of the portable telephone, so that the performance of the secondary battery in a portable telephone connected for charging can be accurately tested. A battery testing device of the present invention has: a charge control circuit for controlling input power which is input to a lithium ion battery via an AC adapter; and a radio circuit for controlling output power which is output from the lithium ion battery and discharging the lithium ion battery, wherein when the lithium ion battery reaches a fully charged state, the radio circuit starts discharging while the charge control circuit stops charge of the lithium ion battery using the AC adapter, and when the lithium ion battery reaches a predetermined charged state, the charge control circuit starts charge of the lithium ion battery using the AC adapter while the radio circuit stops discharge of the lithium ion battery.Type: GrantFiled: December 16, 2008Date of Patent: July 24, 2012Assignee: NTT DoCoMo, Inc.Inventors: Kazuhiko Takeno, Takayuki Kanai, Haruo Uemura
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Publication number: 20120121952Abstract: A battery status detecting device, the battery status detecting device being configured to detect a status of a rechargeable battery which powers an electronic device, the battery status detecting device includes a capacity degradation rate calculating part configured to calculate a capacity degradation rate of the rechargeable battery; an internal resistance value calculating part configured to calculate an internal resistance value of the rechargeable battery; a determining part configured to determine necessity of exchange of the rechargeable battery based on the capacity degradation rate calculated by the capacity degradation rate calculating part and the internal resistance value calculated by the internal resistance value calculating part; and an outputting part configured to output a signal corresponding to a determination result of the determining part, wherein the determining part determines that the exchange of the rechargeable battery is necessary in a case where one of or both of the capacity degrType: ApplicationFiled: August 28, 2009Publication date: May 17, 2012Inventors: Yoshihide Majima, Kazuhiko Takeno, Yasuyuki Kanai, Haruo Uemura
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Patent number: 8035394Abstract: The present invention provides a battery testing device and a battery testing method which can appropriately verify the behavior of a battery when damage occurs. Appropriately verification of battery behavior in a case of battery damage has not been achieved since a completely crushed state of a battery almost never occurs during the sue of a portable device, such as a portable telephone, and a completely crushed state of a battery is not the worst condition when determining an abnormality induced by an internal short. Therefore a secondary battery set on a test stand is partially crushed using a pressing member, and the quality of the secondary battery is determined by measuring the temperature of the secondary battery, whereby battery behavior when the secondary battery is damaged can be appropriately verified.Type: GrantFiled: December 5, 2008Date of Patent: October 11, 2011Assignee: NTT DoCoMo, Inc.Inventors: Kazuhiko Takeno, Takayuki Kanai, Haruo Uemura
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Publication number: 20110187329Abstract: A battery condition detector configured to detect a micro short circuit of a rechargeable battery is disclosed. The battery condition detector includes a processing part configured to calculate the remaining capacity and the full-charge capacity of a rechargeable battery 200 and to determine the micro short circuit of the rechargeable battery 200 by detecting an overcharge of the rechargeable battery 200 based on a charged capacity charged during the charging of the rechargeable battery 200, the remaining capacity calculated at a calculation time immediately before the start of the charging, and the full-charge capacity calculated before the start of the charging; and a communications part 70 configured to output a signal according to the determination result of the processing part 50.Type: ApplicationFiled: September 9, 2009Publication date: August 4, 2011Applicants: MITSUMI ELECTRIC CO., LTD., NTT DOCOMO, INC.Inventors: Yoshihide Majima, Keiichi Kitamura, Kazuhiko Takeno, Yasuyuki Kanai, Haruo Uemura
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Publication number: 20110119005Abstract: A battery-state monitoring apparatus includes: a secondary battery 200 supplying an electric power to portable equipment 300; and an operation processing part 50 that can detect a battery state of the secondary battery 200 in a detection mode to detect the battery state of the secondary battery 200, the operation processing part using the secondary battery 200 as a power source, wherein the battery-state monitoring apparatus includes a start-up current detecting part 31 detecting a start-up of the portable equipment 300, and wherein the operation processing part 50 waits for a detection of the battery state in a standby mode in which power consumption is smaller than the detection mode until the start-up is detected by the start-up current detecting part 31, and, on the other hand, the operation processing part 50 detects, by intermittently performing a temporary return from the standby mode to the detection mode, the battery state of the secondary battery in a return period during which the return is made.Type: ApplicationFiled: July 7, 2009Publication date: May 19, 2011Applicants: MITSUMI ELECTRIC CO., LTD., NTT DOCOMO, INC.Inventors: Yoshihide Majima, Mitsuhiro Takahashi, Kazuhiko Takeno, Haruo Uemura, Yasuyuki Kanai, Takayuki Kanai
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Publication number: 20110112782Abstract: A battery status detection device for detecting the status of a secondary battery 200 supplying power to a mobile device 300 includes a voltage detection unit 20 detecting voltages of the secondary battery 200; a current detection unit 30 detecting charge/discharge currents of the secondary battery 200; an arithmetic processing unit 50 calculating an internal resistance value of the secondary battery 200 based on a voltage difference between the voltages detected by the voltage detection unit 20 before and after the start of charging the secondary battery 200 and a current difference between the charge/discharge currents detected by the current detection unit 30 before and after the start of charging the secondary battery 200 and determining whether the secondary battery 200 is degraded based on the calculated internal resistance value; and a communication processing unit 70 outputting a signal indicating the determination result of the arithmetic processing unit 50.Type: ApplicationFiled: July 7, 2009Publication date: May 12, 2011Applicants: MITSUMI ELECTRIC CO., LTD, NTT DOCOMOInventors: Yoshihide Majima, Kazuhiko Takeno, Haruo Uemura, Yasuyuki Kanai, Takayuki Kanai
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Publication number: 20090160403Abstract: The present invention applies load to a portable telephone by charging and discharging a secondary battery conforming to the actual way of use of the portable telephone, so that the performance of the secondary battery in a portable telephone connected for charging can be accurately tested. A battery testing device of the present invention has: a charge control circuit for controlling input power which is input to a lithium ion battery via an AC adapter; and a radio circuit for controlling output power which is output from the lithium ion battery and discharging the lithium ion battery, wherein when the lithium ion battery reaches a fully charged state, the radio circuit starts discharging while the charge control circuit stops charge of the lithium ion battery using the AC adapter, and when the lithium ion battery reaches a predetermined charged state, the charge control circuit starts charge of the lithium ion battery using the AC adapter while the radio circuit stops discharge of the lithium ion battery.Type: ApplicationFiled: December 16, 2008Publication date: June 25, 2009Applicant: NTT DoCoMo, IncInventors: Kazuhiko TAKENO, Takayuki Kanai, Haruo Uemura
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Publication number: 20090146663Abstract: The present invention provides a battery testing device and a battery testing method which can appropriately verify the behavior of a battery when damage occurs. Appropriately verification of battery behavior in a case of battery damage has not been achieved since a completely crushed state of a battery almost never occurs during the sue of a portable device, such as a portable telephone, and a completely crushed state of a battery is not the worst condition when determining an abnormality induced by an internal short. Therefore a secondary battery set on a test stand is partially crushed using a pressing member, and the quality of the secondary battery is determined by measuring the temperature of the secondary battery, whereby battery behavior when the secondary battery is damaged can be appropriately verified.Type: ApplicationFiled: December 5, 2008Publication date: June 11, 2009Applicant: NTT DoCoMo, IncInventors: Kazuhiko Takeno, Takayuki Kanai, Haruo Uemura
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Publication number: 20030059103Abstract: White light is irradiated onto the surface of a printed circuit board from an oblique direction to capture a color information image MG0. Infrared light is also irradiated from a substantially perpendicular direction to capture an infrared light image IRM. Region segmentation is performed based on the color information image MG0 produces an image MG3 representing an integrated color region which includes a gold region GL and a brown region BR. Using this image MG3 and the infrared light image IRM, the gold region GL can be distinguished from the brown region BR. In another embodiment, a plurality of images relating to a plurality of wavelength bands of light are respectively captured for an inspection region. Then, an image characteristic value is calculated for the plurality of images, and a wavelength band R7 which is appropriate for an inspection is selected on the basis of this image characteristic value.Type: ApplicationFiled: September 23, 2002Publication date: March 27, 2003Applicant: DAINIPPON SCREEN MFG. CO., LTD.Inventors: Junichi Shiomi, Atsushi Imamura, Hiroshi Sano, Haruo Uemura, Takao Kanai, Hiroki Fujimoto, Masahiko Kokubo, Masahiro Horie
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Patent number: 5555135Abstract: An illumination system for illuminating a surface includes a reflecting element having a finite focal length. A light source is located at a point, close to a focal point of the reflecting element, which is deviated from the principal axis of the reflecting element. Light from the light source is reflected by the reflecting element, whereby light with parallel rays is directed toward the surface. The surface is illuminated with symmetrical illuminance distribution with respect to the optical axis of the light.Type: GrantFiled: June 29, 1990Date of Patent: September 10, 1996Assignee: Dainippon Screen Manufacturing Co., Ltd.Inventor: Haruo Uemura
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Patent number: 5197105Abstract: A set of red light sources (111-113) are provided above a printed board (20). One (111) of the light sources located in the angular aperture of an imaging lens system (140). The red light is applied to the printed board and reflected on a wiring pattern (22) provided thereon. Another light source (120) is provided under the printed board, and emits infrared light to the back surface of the printed board. The infrared light passes through a through hole (25) formed in the printed board and then enters the imaging lens system together with the red light reflected. Compound light consisting of the red light and the infrared light passes through the imaging lens system and is then splitted into the red light and the infrared light at a cold mirror (150). The respective lights are detected by image sensors (161, 162), to thereby obtain respective images of the wiring pattern and the through hole.Type: GrantFiled: May 29, 1991Date of Patent: March 23, 1993Assignee: Dainippon Screen Mfg. Co. Ltd.Inventors: Haruo Uemura, Tetsuo Hoki
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Patent number: 4884869Abstract: An illumination system includes a light source, an ellipsoidal mirror for converging light emitted from the light source, a fly's eye lens unit disposed at a converging point of the ellipsoidal mirror, a collimation lens for collimating light rays exited from the fly eye lens unit, and an object disposed along the optical path of the illumination system. The fly's eye lens unit includes a first and a second frame defining an incident aperture and an exit one, a plurality of element lenses aligned in a matrix of rows closely in contact with each other, side walls disposed between the first and second frames for housing the element lenses therein, and biasing element for applying a biasing force to the element lenses sideward with respect to the rows of matrix. The respective element lenses are fixedly held without any medium therebetween.Type: GrantFiled: November 12, 1987Date of Patent: December 5, 1989Assignee: Dainippon Screen Mfg., Co., Ltd.Inventor: Haruo Uemura
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Patent number: 4878745Abstract: Disclosed is a novel optical system for illuminating an object which provides an increased irradiance in the peripheral area of the object. The optical system includes a light source, an entrance pupil for receiving light from the light source, an exit pupil for passing the light received to the object, and an optical axis which extends through the optical system to the light source and the object, respectively, wherein the relationship among the incident height h to the entrance pupil, an illumination height H on the object, and a changing rate (dh/dH) of the incident height and the illumination height is defined by a function, f(H)=(h/H)(dh/dH). The optical system is designed so as to satisfy the following formula in the peripheral area of the object: f(0)<f(H). The function f(0) is represented by f(0)=[fa'/(a'-f)b'}].sup.2, where a' is a distance between the light source and the primary principal point of the optical system, and b' is a distance between the real image of the light source and the object.Type: GrantFiled: July 18, 1988Date of Patent: November 7, 1989Assignee: Dainippon Screen Mfg. Co., Ltd.Inventors: Kenji Endo, Shinichi Nagata, Haruo Uemura