Patents by Inventor Toshiyuki Azuma
Toshiyuki Azuma 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: 9641203Abstract: A wireless module includes a wireless module main body including a first antenna on a first insulating substrate, and a coupler including a second antenna on a second insulating substrate arranged so as to face the first insulating substrate, wherein a connection terminal to which an external antenna is connectable is formed in the second insulating substrate, the connection terminal being connected to a feeding point for the second antenna, individual portions of the conductor patterns in the first antenna and the second antenna are configured so as to face each other, a resonant frequency of the second antenna is set to be higher than a resonant frequency of the first antenna, and the resonant frequency of the second antenna is set so that a transmission frequency characteristic from the first antenna to the second antenna matches a frequency characteristic of the resonant frequency of the first antenna.Type: GrantFiled: April 11, 2014Date of Patent: May 2, 2017Assignee: ALPS ELECTRIC CO., LTD.Inventor: Toshiyuki Azuma
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Publication number: 20150022418Abstract: A wireless module includes a wireless module main body including a first antenna on a first insulating substrate, and a coupler including a second antenna on a second insulating substrate arranged so as to face the first insulating substrate, wherein a connection terminal to which an external antenna is connectable is formed in the second insulating substrate, the connection terminal being connected to a feeding point for the second antenna, individual portions of the conductor patterns in the first antenna and the second antenna are configured so as to face each other, a resonant frequency of the second antenna is set to be higher than a resonant frequency of the first antenna, and the resonant frequency of the second antenna is set so that a transmission frequency characteristic from the first antenna to the second antenna matches a frequency characteristic of the resonant frequency of the first antenna.Type: ApplicationFiled: April 11, 2014Publication date: January 22, 2015Applicant: ALPS ELECTRIC CO., LTD.Inventor: Toshiyuki AZUMA
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Publication number: 20140085146Abstract: An antenna device can be placed on an insulation substrate having a wiring pattern and has an antenna member including an antenna radiation element, a mounting terminal, a power supply terminal formed continuously to the antenna radiation element, and the antenna member is formed by an insert molding with resin. The antenna device includes; a top surface portion that is parallel with respect to the surface of the insulation substrate when the device is placed on the insulation substrate, and a leg portion that is orthogonal with respect to the surface of the insulation substrate when the device is placed on the insulation substrate. The antenna radiation element is disposed on the top surface portion, and the mounting terminal and the power supply terminal are disposed only on the leg portion.Type: ApplicationFiled: August 22, 2013Publication date: March 27, 2014Inventors: Toshiyuki Azuma, Satoru Matsuzaki, Satoru Chida
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Patent number: 7197298Abstract: A radio-communication terminal device having an antenna unit incorporating an antenna element and an authenticator for authenticating the connected antenna element, and a transceiver unit that includes a transmission circuit, a reception circuit, an authentication detector and a communication controller. The antenna unit further includes a first antenna connector and a first connector. The transceiver unit includes a second connector that connects to the first connector when the first antenna connector connects to the second antenna connector. The authentication detector detects the authentication of the authenticator when the first connector is connected to the second connector. The communication controller prevents the transmission circuit from transmitting signals when the authenticator cannot authenticate the connection to the antenna unit.Type: GrantFiled: April 20, 2004Date of Patent: March 27, 2007Assignee: Alps Electric Co., Ltd.Inventor: Toshiyuki Azuma
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Patent number: 7092961Abstract: A data display system (10) and a patent map forming system (20) give evaluation values obtained by a predetermined evaluation axis or an arbitrarily set evaluation value in cooperation with each other, and forms a map sheet (MS) on the basis of the evaluation values. The data display system (10) acquires a first-class identification code such as a publication number from a basic data sheet (DS) obtained by listing bibliographical information or the like of a patent input by a spreadsheet software (22) from an input file, and an identification code conversion unit converts (12) the first-class identification code into a second-class identification code. A patent data server (SV) is directly accessed by the second-class identification code to read an abstract, a representative drawing, all documents, drawings, and the like, serving as detailed data, thereby displaying these data on a display (DP).Type: GrantFiled: March 22, 2001Date of Patent: August 15, 2006Assignee: Nissan Motor Co., Ltd.Inventors: Yutaka Minezaki, Toshiyuki Azuma
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Publication number: 20060031260Abstract: A data display system (10) and a patent map forming system (20) give evaluation values obtained by a predetermined evaluation axis or an arbitrarily set evaluation value in cooperation with each other, and forms a map sheet (MS) on the basis of the evaluation values. The data display system (10) acquires a first-class identification code such as a publication number from a basic data sheet (DS) obtained by listing bibliographical information or the like of a patent input by a spreadsheet software (22) from an input file, and an identification code conversion unit converts (12) the first-class identification code into a second-class identification code. A patent data server (SV) is directly accessed by the second-class identification code to read an abstract, a representative drawing, all documents, drawings, and the like, serving as detailed data, thereby displaying these data on a display (DP).Type: ApplicationFiled: August 23, 2005Publication date: February 9, 2006Applicant: NISSAN MOTOR CO., LTD.Inventors: Yutaka Minezaki, Toshiyuki Azuma
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Publication number: 20050136906Abstract: The mobile phone contains: a transmitting and receiving unit including a transmitter circuit and a receiver circuit sharing a transmitting and receiving antenna, a receiver circuit having a receiving antenna, and a controller; and a control unit which can be coupled to the transmitting and receiving unit and which has a main controller transmitting communication data from and to the controller to selectively supply an AT command to the controller at the time of being coupled to the transmitting and receiving unit. The transmitting and receiving unit performs diversity reception operation using two receiver circuits, and when a request by the AT command is input from the control unit, the transmitting and receiving unit performs single reception operation where only one receiver circuit operates.Type: ApplicationFiled: December 8, 2004Publication date: June 23, 2005Inventor: Toshiyuki Azuma
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Publication number: 20040214532Abstract: A radio-communication terminal device having an antenna unit incorporating an antenna element and an authenticator for authenticating the connected antenna element, and a transceiver unit that includes a transmission circuit, a reception circuit, an authentication detector and a communication controller. The antenna unit further includes a first antenna connector and a first connector. The transceiver unit includes a second connector that connects to the first connector when the first antenna connector connects to the second antenna connector. The authentication detector detects the authentication of the authenticator when the first connector is connected to the second connector. The communication controller prevents the transmission circuit from transmitting signals when the authenticator cannot authenticate the connection to the antenna unit.Type: ApplicationFiled: April 20, 2004Publication date: October 28, 2004Applicant: Alps Electric Co., Ltd.Inventor: Toshiyuki Azuma
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Patent number: 6683917Abstract: The base band signal processing circuit of the present invention intends to improve both the noise characteristic and the distortion characteristic, and moreover set both the characteristics in a desirable balance. The base band signal processing circuit is configured as follows: the first active low-pass filter and the second active low-pass filter are each formed in the balanced type, the first D/A converter differentially outputs the first base band signals and differentially inputs them to the first active low-pass filter, the second D/A converter differentially outputs the second base band signals and differentially inputs them to the second active low-pass filter, the first active low-pass filter differentially outputs the first base band signals, and the second active low-pass filter differentially outputs the second base band signals.Type: GrantFiled: October 18, 1999Date of Patent: January 27, 2004Assignee: Alps Electric Co., Ltd.Inventor: Toshiyuki Azuma
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Patent number: 6597747Abstract: The time interval between the rise time or fall time of a first clock signal which is used to convert a digital signal into an analog signal and the rise time or fall time of a second clock signal which is used to convert the digital signal into an analog signal can be changed.Type: GrantFiled: October 18, 1999Date of Patent: July 22, 2003Assignee: Alps Electric Co., Ltd.Inventor: Toshiyuki Azuma
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Publication number: 20010028362Abstract: A data display system (10) and a patent map forming system (20) give evaluation values obtained by a predetermined evaluation axis or an arbitrarily set evaluation value in cooperation with each other, and forms a map sheet (MS) on the basis of the evaluation values. The data display system (10) acquires a first-class identification code such as a publication number from a basic data sheet (DS) obtained by listing bibliographical information or the like of a patent input by a spreadsheet software (22) from an input file, and an identification code conversion unit converts (12) the first-class identification code into a second-class identification code. A patent data server (SV) is directly accessed by the second-class identification code to read an abstract, a representative drawing, all documents, drawings, and the like, serving as detailed data, thereby displaying these data on a display (DP).Type: ApplicationFiled: March 22, 2001Publication date: October 11, 2001Applicant: NISSAN MOTOR CO., LTD.Inventors: Yutaka Minezaki, Toshiyuki Azuma
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Patent number: 6061342Abstract: A code division multiple access apparatus which is capable of high-speed synchronization, is simple in construction and, moreover, achieves reduced consumption of electric power during standby. When a specific pattern contained in a signal received by a receiving antenna is detected by a SAW matched filter, a correlation peak is output from the filter. A bit synchronization signal generating circuit detects the correlation peak thereof and generates a synchronization signal after a set time has elapsed from the detection of the correlation peak. An orthogonal PN code generator generates a predetermined orthogonal PN code in accordance with the synchronization signal. Further, a carrier generator generates a carrier in response to the output of the SAW matched filter. This generated carrier is modulated by the output of the orthogonal PN code generator.Type: GrantFiled: March 20, 1997Date of Patent: May 9, 2000Assignee: Kazuo TsubouchiInventors: Kazuo Tsubouchi, Jun Hozumi, Toshiyuki Azuma
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Patent number: 6018641Abstract: A radio IC card system includes an IC card and a toll collector. When an automobile with the IC card passes by a tollgate, the toll collector installed in the tollgate transmits a first radio signal which is spread modulated using a pseudorandom noise (PN) code from an antenna. The first radio signal is received by the antenna of the IC card and is transmitted to a surface acoustic wave (SAW) correlator. The SAW correlator extracts a PN code included in the received signal, and outputs a peak signal. An accumulation circuit accumulates the peak signal. A threshold discharger is activated to switch on a relay switch when the output voltage of the accumulation circuit exceeds a constant value. Thereby, the voltage of a battery is supplied to a data communication unit. Then, the identification code of the IC card and a record of tollgates by which the automobile has passed are transmitted via radio signal to the toll collector.Type: GrantFiled: April 10, 1997Date of Patent: January 25, 2000Assignee: Kazuo TsubouchiInventors: Kazuo Tsubouchi, Jun Hozumi, Toshiyuki Azuma
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Patent number: 5995806Abstract: A radio data transmitter includes radio switching circuit which is activated in response to first radio signal having a predetermined particular pattern, and a data transmitter unit. The data unit transmits a first radio signal include a carrier modulated by predetermined data from an antenna when supplied with power in accordance with the activation of the radio switching circuit, and subsequently disconnect the power supply. In addition, a radio data receiver includes switch-activation to circuit for transmitting the first radio signal having the predetermined particular pattern, a receiving circuit for receiving the second radio signal including the data from the data transmitter unit activated by the first radio signal having the predetermined particular pattern, and a storage device for storing data received by the receiving circuit.Type: GrantFiled: March 19, 1997Date of Patent: November 30, 1999Assignee: Kazuo TsubouchiInventors: Kazuo Tsubouchi, Jun Hozumi, Toshiyuki Azuma
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Patent number: 5905449Abstract: A radio switching apparatus is provided which is actuated upon reception of a radio signal and which is capable zero or near-zero standby electric power consumption. The radio switching apparatus includes a receiving antenna; a surface-acoustic-wave device to which a signal received by the antenna is fed and which extracts a specific pattern contained in the signal; a storing circuit for storing output electric power of the surface-acoustic-wave device; and a switch circuit which is turned on when the output voltage of the storing circuit exceeds a set value.Type: GrantFiled: March 6, 1997Date of Patent: May 18, 1999Assignee: Kazuo TsubouchiInventors: Kazuo Tsubouchi, Jun Hozumi, Toshiyuki Azuma
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Patent number: 5528034Abstract: The present invention is to provide a method for detecting hydrogen with ultra high sensitivity based on slow multiply-charged ion wherein damages of a target surface can be remarkably reduced and a quantitative analysis of hydrogen atoms on a solid surface can be compactly realized with extremely high efficiency by employing slow multiply-charged ions derived from an ion source for efficiently generating multiply-charged ions.Type: GrantFiled: March 28, 1995Date of Patent: June 18, 1996Assignee: The University of TokyoInventors: Yasunori Yamazaki, Kenichiro Komaki, Toshiyuki Azuma, Nobukazu Kakutani, Kenro Kuroki
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Patent number: 5241479Abstract: A traction control method for a vehicle which includes the steps of generating a braking force in drive wheel brake devices when it is determined that a drive wheel shows a slipping tendency, wherein the control mode for left and right drive wheel brake devices is switchable between an independent mode for independently controlling braking forces in the left and right drive wheel brake devices and a collective control mode for collectively controlling braking forces of these brake devices, and controlling the braking forces of the brake devices in the independent control mode in response to a condition in which the absolute value of a difference between left and right drive wheel speeds exceeds a predetermined value.Type: GrantFiled: October 16, 1990Date of Patent: August 31, 1993Assignees: Honda Giken Kogyo Kabushiki Kaisha, NEC Home Electronics, Ltd.Inventors: Shohei Matsuda, Toshio Yahagi, Toshiyuki Azuma, Katsutoshi Kizaki, Takashi Okuda
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Patent number: 4733875Abstract: A vehicle height control device that includes a pressure sensor 28 for detecting the pressure of compressed air supplied to pneumatic shock absorbers 10 for pneumatically bearing the load of a vehicle loads applied through the wheels. A control circuit 30 is included for controlling vehicle height based on the pressure detected by the pressure sensor 28. A waveform shaping circuit is connected between the control circuit 30 and the pressure sensor 28 and shapes the waveform to moderate the pressure change while the pressure is rising to a greater degree than while the pressure is dropping. The waveform shaping circuit includes a passive low-pass filter circuit 38, an active low-pass filter circuit 52 and a pair of diodes 70 and 72. The diodes 70 and 72 connected to the active filter circuit 52, allowing rapid capacitor discharge during decreases in signal amplitude while maintaining a slow discharge rate during decreases in signal amplitude.Type: GrantFiled: April 21, 1986Date of Patent: March 29, 1988Assignees: NEC Home Electronics Ltd., Honda Giken Kogyo Kabushiki KaishaInventors: Toshiyuki Azuma, Seiji Yamashita, Koichi Hikichi, Morio Sato