Patents by Inventor Tsutomu Nakazawa
Tsutomu Nakazawa 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: 7255274Abstract: A system for collecting data using a non-contact IC chip to manage the data using a computer. An IC chip sends data in a non-contact manner to a reader. The reader receives and stores the data in a memory. When an IC chip of a kind different from the IC chip is present near the reader, the reader sends the data stored in the memory to that IC chip by radio. The data received by the IC chip is supplied to a computer. The reader remains in a stand-alone setting and exchanges data with an IC chip.Type: GrantFiled: November 5, 2004Date of Patent: August 14, 2007Assignee: Sanyo Electric Co., Ltd.Inventor: Tsutomu Nakazawa
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Patent number: 7202787Abstract: A non-authentic article discrimination system for discriminating whether an article to which an IC tag is attached is a non-authentic article includes an IC tag and a base device. The IC tag includes a first antenna portion for receiving a radio wave, a power generation circuit for generating electric power from the radio wave received by the first antenna portion, a first storing portion for storing information regarding the article, and a radio wave output circuit for outputting a radio wave including the information stored in the first storing portion via the first antenna portion.Type: GrantFiled: September 29, 2004Date of Patent: April 10, 2007Assignee: Sanyo Electric Co., Ltd.Inventor: Tsutomu Nakazawa
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Patent number: 7143948Abstract: A two-dimensional bar code printed on a piece of paper is photographed by the area sensor. A reading method of this bar code includes a process for correcting the distortion of the image of the two-dimensional bar code obtained from the area sensor by the projection transform, a process for correcting bright spots appearing in the image, and a process for decoding the two-dimensional bar code based on the image data of the two-dimensional bar code corrected by the two processes. This invention enables size-reduction of the reading device of the two-dimensional bar code and also achieves a higher reading speed of the reading device.Type: GrantFiled: November 27, 2002Date of Patent: December 5, 2006Assignee: Sanyo Electric Co., Ltd.Inventors: Tsutomu Nakazawa, Kouichi Hamakawa, Youji Takei, Masanobu Kiyama
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Patent number: 7106902Abstract: A personal authentication system of this invention has a card reader, in which a bar code reading device for reading a two-dimensional barcode containing personal data, a CMOS image sensor for producing face data by photographing the face of a person, and a fingerprint reading device for producing fingerprint data by reading the fingerprint of the person are assembled as one unit. A personal computer performs a projection transform and a brightness correction to the barcode read by the card reader for acquiring accurate data. Then, the personal data, the face data, and the fingerprint data are compared with database for authenticating the person. Therefore, this invention achieves more accurate personal authentication and leads to improved security.Type: GrantFiled: November 27, 2002Date of Patent: September 12, 2006Assignee: Sanyo Electric Co., Ltd.Inventors: Tsutomu Nakazawa, Kouichi Hamakawa, Youji Takei, Masanobu Kiyama
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Publication number: 20060131661Abstract: Unnecessary leakage current to a semiconductor substrate is prevented when a forward current flows through a diode. An N-type well region is formed in a surface of a P-type semiconductor substrate. A P-type well region is formed in the N-type well region. An N+-type diffusion layer is formed in a surface of the N-type well region outside the P-type well region. A P+-type diffusion layer and an N+-type diffusion layer are formed in a surface of the P-type well region. The N+-type diffusion layer formed in the surface of the N-type well region is electrically connected with the P+-type diffusion layer formed in the surface of the P-type well region with a wiring made of aluminum, for example. An anode electrode is connected with the wiring. Also, a cathode electrode is connected with the N+-type diffusion layer.Type: ApplicationFiled: September 26, 2005Publication date: June 22, 2006Applicant: SANYO ELECTRIC CO., LTD.Inventors: Kazutomo Goshima, Hiroshi Saito, Yoshiyuki Fukuda, Tsutomu Nakazawa
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Publication number: 20050226310Abstract: An adhesive clinical thermometer pad is used in combination with a reader for reading temperature information of a patient from the thermometer pad. The pad includes a flexible main body of a generally flat shape, an adhesive layer formed on a rear surface of the main body, an antenna portion for receiving a radio wave emitted from the reader, an electric power generating portion for generating electric power from the radio wave received by the antenna portion, a temperature senor for measuring a body temperature of the patient, and an output portion for wirelessly outputting temperature information toward the reader. The antenna portion, the electric power generating portion, the temperature sensor and the output portion are embedded in the main body. The temperature information includes the measured temperature and an ID code given to the clinical thermometer pad. The output portion is operated by the electric power generated by the electric power generating portion.Type: ApplicationFiled: September 24, 2004Publication date: October 13, 2005Applicant: Sanyo Electric Co., Ltd.Inventors: Tsutomu Nakazawa, Motoya Sakano
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Publication number: 20050163189Abstract: In some embodiments, a temperature information reader is used in combination with a temperature measuring pad to be attached to a surface of an object for measuring a temperature of the object. In some examples, the temperature measuring pad receives a radio wave, generates electric power from the received radio wave, measures the temperature of the object, and wirelessly outputs temperature information including the measured temperature and an ID code give to the temperature measuring pad toward the temperature information reader. The temperature information reader includes, e.g.Type: ApplicationFiled: September 24, 2004Publication date: July 28, 2005Applicant: Sanyo Electric Co., Ltd.Inventors: Tsutomu Nakazawa, Motoya Sakano
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Publication number: 20050151617Abstract: A non-authentic article discrimination system for discriminating whether an article to which an IC tag is attached is a non-authentic article includes an IC tag and a base device. The IC tag includes a first antenna portion for receiving a radio wave, a power generation circuit for generating electric power from the radio wave received by the first antenna portion, a first storing portion for storing information regarding the article, and a radio wave output circuit for outputting a radio wave including the information stored in the first storing portion via the first antenna portion.Type: ApplicationFiled: September 29, 2004Publication date: July 14, 2005Applicant: Sanyo Electric Co., Ltd.Inventor: Tsutomu Nakazawa
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Publication number: 20050151648Abstract: A base device is used in combination with an IC tag in a non-authentic article discrimination system for discriminating whether an article to which the IC tag is attached is a non-authentic article. The base device includes an antenna portion for receiving a radio wave transmitted from the IC tag and transmitting a radio wave generated in the base device toward the IC tag, a storing portion for storing information regarding the article, a discrimination portion for discriminating whether information included in the radio wave received by the antenna portion coincides with information stored in the storing portion, and a displaying portion for displaying a discrimination result of the discrimination portion.Type: ApplicationFiled: September 29, 2004Publication date: July 14, 2005Applicant: Sanyo Electric Co., Ltd.Inventor: Tsutomu Nakazawa
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Publication number: 20050154327Abstract: In some embodiments, a thermometer is disclosed that can be used in combination with a reader for reading temperature information of a patient from the thermometer pad. In some examples, the thermometer includes, e.g., a thermal sensor that changes in resistance in response to temperature changes, a memory, and a temperature correction circuit. The memory stores, in advance, a temperature difference between an expected measured temperature as a true temperature and an actually measured temperature corresponding to the expected measured temperature obtained by converting an analog signal from the thermal sensor into a digital signal as a correction value. The temperature correction circuit corrects a temperature measured in an actual use with the correction value.Type: ApplicationFiled: November 8, 2004Publication date: July 14, 2005Inventor: Tsutomu Nakazawa
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Publication number: 20050151616Abstract: An IC tag is used in combination with a base device in a non-authentic article discrimination system for discriminating whether an article to which an IC tag is attached is a non-authentic article. The IC tag includes an antenna portion for receiving a radio wave transmitted from the base device, a power generation circuit for generating electric power from the radio wave received by the antenna portion, a storing portion for storing information regarding the article, and a radio wave output circuit for outputting a radio wave including the information stored in the storing portion toward the base device via the first antenna portion.Type: ApplicationFiled: September 29, 2004Publication date: July 14, 2005Applicant: Sanyo Electric Co., Ltd.Inventor: Tsutomu Nakazawa
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Publication number: 20050147151Abstract: A temperature measuring system includes, e.g., a temperature measuring pad configured to measure a temperature of an object on which the temperature measuring pad is to be disposed, and a reader configured to read temperature information including the measured temperature and an ID code given to the temperature measuring pad. The temperature measuring pad includes, e.g., an antenna portion for receiving a radio wave emitted from the reader, an electric power generating portion for generating electric power from the radio wave received by the antenna portion, a temperature sensor for measuring the temperature of the object and an output portion for wirelessly outputting the temperature information, the output portion being operated by the electric power generated by the electric power generating portion. The reader includes, e.g.Type: ApplicationFiled: September 24, 2004Publication date: July 7, 2005Applicant: Sanyo Electric Co., Ltd.Inventors: Tsutomu Nakazawa, Motoya Sakano
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Publication number: 20050098630Abstract: A system for collecting data using a non-contact IC chip to manage the data using a computer. An IC chip sends data in a non-contact manner to a reader. The reader receives and stores the data in a memory. When an IC chip of a kind different from the IC chip is present near the reader, the reader sends the data stored in the memory to that IC chip by radio. The data received by the IC chip is supplied to a computer. The reader remains in a stand-alone setting and exchanges data with an IC chip.Type: ApplicationFiled: November 5, 2004Publication date: May 12, 2005Applicant: Sanyo Electric Co., Ltd.Inventor: Tsutomu Nakazawa
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Publication number: 20030123710Abstract: A personal authentication system of this invention has a card reader, in which a bar code reading device for reading a two-dimensional barcode containing personal data, a CMOS image sensor for producing face data by photographing the face of a person, and a fingerprint reading device for producing fingerprint data by reading the fingerprint of the person are assembled as one unit. A personal computer performs a projection transform and a brightness correction to the barcode read by the card reader for acquiring accurate data. Then, the personal data, the face data, and the fingerprint data are compared with database for authenticating the person. Therefore, this invention achieves more accurate personal authentication and leads to improved security.Type: ApplicationFiled: November 27, 2002Publication date: July 3, 2003Applicant: Sanyo Electric Co., Ltd.Inventors: Tsutomu Nakazawa, Kouichi Hamakawa, Youji Takei, Masanobu Kiyama
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Publication number: 20030116628Abstract: A two-dimensional bar code printed on a piece of paper is photographed by the area sensor. A reading method of this bar code includes a process for correcting the distortion of the image of the two-dimensional bar code obtained from the area sensor by the projection transform, a process for correcting bright spots appearing in the image, and a process for decoding the two-dimensional bar code based on the image data of the two-dimensional bar code corrected by the two processes. This invention enables size-reduction of the reading device of the two-dimensional bar code and also achieves a higher reading speed of the reading device.Type: ApplicationFiled: November 27, 2002Publication date: June 26, 2003Applicant: Sanyo Electric Co., Ltd.Inventors: Tsutomu Nakazawa, Kouichi Hamakawa, Youji Takei, Masanobu Kiyama
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Patent number: 6297746Abstract: There is disclosed a system for centrally controlling a plurality of electrical apparatuses in which radio communication is performed between a host unit and terminal units registered in the host unit and each terminal unit is disposed for each of the plurality of electrical apparatuses. The terminal unit controls the corresponding electrical apparatus based on a control signal from the host unit by the radio communication, and detects the state of the electrical apparatus to report it to the host unit. The radio communication is not directly performed between each electrical apparatus and the host unit, and the terminal unit is interposed therebetween, so that the radio communication is performed between a centralized control device and a terminal device. Therefore, electrical apparatus do not require a radio transmitter/receiver mechanism, and is only provided with a function by which data can be exchanged the terminal unit.Type: GrantFiled: January 29, 1999Date of Patent: October 2, 2001Assignee: Sanyo Electric Co., Ltd.Inventors: Tsutomu Nakazawa, Osamu Ishikawa, Kouichi Hamakawa, Ryouichi Watanabe, Takao Suzuki
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Patent number: 5757066Abstract: A resin sealed semiconductor device, wherein support pins uphold a pair of facing sides of the semiconductor chip. A projected portion is formed on the distal end portion of the support pin in proximate to the semiconductor chip. The projected portion is formed on both sides of the supporting members which respectively correspond to an upper side and a bottom side of the semiconductor chip in such a manner that when the projected portions are viewed from the upper side or bottom side of the semiconductor chip, they overlap with each other. All of the height of the projected portions are the same. The thickness of the resins formed on both opposite sides of the semiconductor chip is the same with each other, thus preventing the upward or downward displacement within the sealing resin of the semiconductor chip in a thin package.Type: GrantFiled: March 25, 1996Date of Patent: May 26, 1998Assignee: Kabushiki Kaisha ToshibaInventors: Yumi Inoue, Tsutomu Nakazawa
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Patent number: 5733802Abstract: There is provided a semiconductor device having a very thin, highly reliable semiconductor package and a method of easily manufacturing the semiconductor apparatus. The method comprises a first step of coating and melting a thermosetting resin in a mold for resin sealing, while keeping the mold at a predetermined temperature, the mold being divided into an upper mold and a lower mold, a second step of fixing within the mold a lead frame supporting a semiconductor chip, and a third step of applying a pressure on the mold and compression-molding the resin, thus forming a package.Type: GrantFiled: October 3, 1995Date of Patent: March 31, 1998Assignee: Kabushiki Kaisha ToshibaInventors: Yumi Inoue, Tsutomu Nakazawa
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Patent number: 5684327Abstract: A lead frame for use in a resin-sealed type semiconductor device, comprising an outer frame, a plurality of leads supported by the outer frame, arranged side by side and each composed of an inner lead and an outer lead, a die pad arranged inside the outer frame and located so that the tips of the inner leads are close to the die pad and oppose the die pad, and a resin flow-control body. The resin flow-control body has been formed by extending a portion of the outer frame toward the die pad through a space formed in the outer frame. The body is designed to be placed in a cavity of a mold having a gate communicating with the cavity, with the space located between the gate and the cavity, in order to form a resin sealing body.Type: GrantFiled: September 13, 1995Date of Patent: November 4, 1997Assignee: Kabushiki Kaisha ToshibaInventors: Tsutomu Nakazawa, Yumi Inoue
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Patent number: 5648682Abstract: In a resin-sealed semiconductor device, leads are respectively connected to a plurality of connection electrodes of a semiconductor chip. The leads include a plurality of inner leads respectively connected to the connection electrodes and a plurality of outer leads, first ends of which are connected to the inner leads and second ends of which are connected to an external device. Distal ends of the inner leads have cut-off thin portions, which define a recess for holding the semiconductor chip. The inner leads and the semiconductor chip are covered by a resin sealing material.Type: GrantFiled: October 12, 1995Date of Patent: July 15, 1997Assignee: Kabushiki Kaisha ToshibaInventors: Tsutomu Nakazawa, Yumi Inoue