Patents by Inventor Junichi Arai
Junichi Arai 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: 20200011211Abstract: A sliding member includes a base substrate and a coating layer formed on the base substrate. The coating layer includes a copper alloy part derived from a plurality of precipitation hardening copper alloy particles. The copper alloy parts are bonded to each other via interfaces between the copper alloy parts. The copper alloy part contains nickel and silicon as additive elements. The copper alloy part contains 2 to 5 percent by mass of nickel. A sliding member for an internal combustion engine includes the sliding member at a sliding part of the internal combustion engine.Type: ApplicationFiled: February 2, 2018Publication date: January 9, 2020Applicants: NISSAN MOTOR CO., LTD., FUKUDA METAL FOIL & POWDER CO., LTD.Inventors: Yoshinori IZAWA, Junichi ARAI, Katsunori OTOBE, Shinichi NISHIMURA
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Publication number: 20190368049Abstract: A method for producing a laminated member includes a step of spraying a mixture in a non-molten state including a plurality of precipitation hardening copper alloy particles and a plurality of hard particles that have non-spherical shapes having a median aspect ratio of equal to or more than 1.2 and are harder than the copper alloy particles onto a base substrate to form a coating layer on the base substrate.Type: ApplicationFiled: February 2, 2018Publication date: December 5, 2019Applicants: NISSAN MOTOR CO,, LTD., FUKUDA METAL FOIL & POWDER CO., LTD.Inventors: Yoshinori IZAWA, Junichi ARAI, Yutaka MABUCHI, Katsunori OTOBE, Shinichi NISHIMURA
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Publication number: 20190344338Abstract: A laminate includes a base substrate, and a coating layer formed on the base substrate. The coating layer includes a copper alloy portions derived from precipitation-hardening copper alloy particles and hard particle portions which are harder than the copper alloy portions, the hard particle portions are derived from hard particles, and the parts bond with each other via an interface. Each of the hard particle portions has a non-spherical shape. A sliding member includes the laminate in at least one sliding portion. A method for manufacturing a laminate includes a step of spraying a mixture in a non-molten state including precipitation-hardening copper alloy particles and hard particles having a non-spherical shape and being harder than the copper alloy particles onto a base substrate, to form a coating layer on the base substrate.Type: ApplicationFiled: February 2, 2018Publication date: November 14, 2019Applicants: NISSAN MOTOR CO., LTD., FUKUDA METAL FOIL & POWER CO., LTD.Inventors: Yoshinori IZAWA, Junichi ARAI, Yutaka MABUCHI, Katsunori OTOBE, Shinichi NISHIMURA
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Publication number: 20190286040Abstract: An image forming apparatus includes a fixer that fixes toner adhering to a sheet that passes through a fixing nip, the fixer including: an endless fixing belt that rotates; and a presser that presses the fixing belt to form the fixing nip between the fixing belt and the presser. The image forming apparatus includes a hardware processor that calculates an amount of the toner adhering to the sheet that passes through the fixing nip, and determines a degree of abrasion of the fixing belt, based on the amount of the toner calculated by the hardware processor.Type: ApplicationFiled: February 13, 2019Publication date: September 19, 2019Inventor: JUNICHI ARAI
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Patent number: 10354019Abstract: A computer-readable recording medium having stored herein a program for causing a computer to execute a dental prosthesis design process includes: searching a database storing data including structures of teeth including natural teeth to search for candidate teeth, which correspond to a part where a prosthesis is to be mounted on, based on information of a shape surrounding the part where the prosthesis is to be mounted on; putting priority levels on the candidate teeth by applying a predetermined rule to a matching degree of the searching; and outputting information of the candidate teeth based on the priority levels.Type: GrantFiled: August 4, 2015Date of Patent: July 16, 2019Assignee: FUJITSU LIMITEDInventors: Toshihisa Fujiwara, Toshiaki Mase, Guoping Sun, Junichi Arai
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Patent number: 10291235Abstract: An oven controlled crystal oscillator includes a crystal oscillator, a temperature control circuit, and a control integrated circuit. The crystal oscillator includes a crystal resonator and an oscillator circuit. The temperature control circuit includes a heater resistor, a thermistor, a first resistor, a second resistor, a third resistor, a differential amplifier, a thermosensor, and a fourth resistor. The thermosensor is disposed in parallel to the first resistor. The thermosensor has one end to which the supply voltage is supplied. The fourth resistor has one end connected to another end of the thermosensor and another end that is grounded. The control integrated circuit includes a digital variable resistor and a controller. The digital variable resistor is connected to the thermosensor in parallel. The controller adjusts a resistance value of the digital variable resistor based on a digital control signal input from outside.Type: GrantFiled: February 23, 2017Date of Patent: May 14, 2019Assignee: NIHON DEMPA KOGYO CO., LTD.Inventor: Junichi Arai
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Patent number: 10278293Abstract: An electronic device includes a first board, a second board, and support pillars. The support pillars hold the first board and the second board mutually separated. The first board has a first surface on which an electronic component is mounted. The first board has a second surface that includes depressed portions into which the support pillars extending from the second board are inserted.Type: GrantFiled: June 6, 2017Date of Patent: April 30, 2019Assignee: NIHON DEMPA KOGYO CO., LTD.Inventors: Tomoyuki Hosoda, Junichi Arai
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Patent number: 10256825Abstract: An oven controlled crystal oscillator that ensures reduced heat influence from outside to further stabilize an output frequency is provided. The oven controlled crystal oscillator includes a substrate secured above a base. The oven controlled crystal oscillator includes an oscillator circuit, a heater resistor, and a power transistor, which are mounted on the substrate. The oven controlled crystal oscillator includes pins that secures the substrate above the base at a predetermined interval, a metal cover that covers the oscillator circuit, the heater resistor, and the power transistor, and a resin cover that covers outside of the metal cover. An air layer is formed between the metal cover and the resin cover.Type: GrantFiled: March 4, 2015Date of Patent: April 9, 2019Assignee: NIHON DEMPA KOGYO CO., LTD.Inventor: Junichi Arai
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Patent number: 10043717Abstract: An electronic device includes at least two boards and support pillars. The at least two boards include hole portions. The support pillars inserted into the hole portions such that the at least two boards are held mutually separated. The hole portions include tapered surfaces that incline toward center portions of the hole portions from a surface on a side from which the support pillars of the boards are inserted.Type: GrantFiled: June 5, 2017Date of Patent: August 7, 2018Assignee: NIHON DEMPA KOGYO CO., LTD.Inventors: Junichi Arai, Masakazu Nishiwaki, Daisaku Nagata
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Publication number: 20180013386Abstract: An oven-controlled crystal oscillator includes a base substrate, a power transistor, and a surface mount type crystal resonator. The base substrate has a bottom surface on which a mounting terminal for surface mounting is disposed. The power transistor is mounted on the base substrate. The surface mount type crystal resonator is mounted on the power transistor.Type: ApplicationFiled: July 3, 2017Publication date: January 11, 2018Applicant: NIHON DEMPA KOGYO CO., LTD.Inventor: Junichi ARAI
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Publication number: 20170358499Abstract: An electronic device includes at least two boards and support pillars. The at least two boards include hole portions. The support pillars inserted into the hole portions such that the at least two boards are held mutually separated. The hole portions include tapered surfaces that incline toward center portions of the hole portions from a surface on a side from which the support pillars of the boards are inserted.Type: ApplicationFiled: June 5, 2017Publication date: December 14, 2017Applicant: NIHON DEMPA KOGYO CO., LTD.Inventors: Junichi ARAI, Masakazu NISHIWAKI, Daisaku NAGATA
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Publication number: 20170359906Abstract: An electronic device includes a first board, a second board, and support pillars. The support pillars hold the first board and the second board mutually separated. The first board has a first surface on which an electronic component is mounted. The first board has a second surface that includes depressed portions into which the support pillars extending from the second board are inserted.Type: ApplicationFiled: June 6, 2017Publication date: December 14, 2017Applicant: NIHON DEMPA KOGYO CO., LTD.Inventors: Tomoyuki HOSODA, Junichi ARAI
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Publication number: 20170250691Abstract: An oven controlled crystal oscillator includes a crystal oscillator, a temperature control circuit, and a control integrated circuit. The crystal oscillator includes a crystal resonator and an oscillator circuit. The temperature control circuit includes a heater resistor, a thermistor, a first resistor, a second resistor, a third resistor, a differential amplifier, a thermosensor, and a fourth resistor. The thermosensor is disposed in parallel to the first resistor. The thermosensor has one end to which the supply voltage is supplied. The fourth resistor has one end connected to another end of the thermosensor and another end that is grounded. The control integrated circuit includes a digital variable resistor and a controller. The digital variable resistor is connected to the thermosensor in parallel. The controller adjusts a resistance value of the digital variable resistor based on a digital control signal input from outside.Type: ApplicationFiled: February 23, 2017Publication date: August 31, 2017Applicant: NIHON DEMPA KOGYO CO., LTD.Inventor: Junichi ARAI
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Publication number: 20170019109Abstract: An oven controlled crystal oscillator that ensures reduced heat influence from outside to further stabilize an output frequency is provided. The oven controlled crystal oscillator includes a substrate secured above a base. The oven controlled crystal oscillator includes an oscillator circuit, a heater resistor, and a power transistor, which are mounted on the substrate. The oven controlled crystal oscillator includes pins that secures the substrate above the base at a predetermined interval, a metal cover that covers the oscillator circuit, the heater resistor, and the power transistor, and a resin cover that covers outside of the metal cover. An air layer is formed between the metal cover and the resin cover.Type: ApplicationFiled: March 4, 2015Publication date: January 19, 2017Applicant: NIHON DEMPA KOGYO CO., LTD.Inventor: Junichi ARAI
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Patent number: 9342032Abstract: An image forming apparatus includes a time setting unit that sets a print allowable time according to the amount of advance payment, a usage time count unit that counts a usage time and a print allowance determination unit that determines, from the time setting unit and the usage time count unit, whether printing is allowed or prohibited. Before the time counted by the usage time count unit reaches the print allowable time, the print allowance determination unit allows the printing to be performed whereas after the time counted by the usage time count unit reaches the print allowable time, the print allowance determination unit prohibits the printing from being performed.Type: GrantFiled: February 27, 2015Date of Patent: May 17, 2016Assignee: KONICA MINOLTA, INC.Inventors: Michio Takahashi, Toshiyuki Tokuno, Kenji Taki, Junichi Arai
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Patent number: 9256235Abstract: A temperature control circuit of an oven controlled crystal oscillator is a circuit in which a supply voltage is applied to a first terminal of a resistance R10, a first terminal of a resistance R11, and a first terminal of a heater resistance RH1, a second terminal of a thermistor TH1, a second terminal of a temperature sensing element, and a collector side of a transistor Q2 are connected to a common ground, a first terminal of a temperature sensing element ZZ is connected to an input terminal of an operational amplifier IC2, and a setting temperature in a thermostatic oven is controlled to gradually rise as an ambient operative temperature rises.Type: GrantFiled: August 15, 2014Date of Patent: February 9, 2016Assignee: NIHON DEMPA KOGYO CO., LTD.Inventor: Junichi Arai
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Publication number: 20150335406Abstract: A computer-readable recording medium having stored herein a program for causing a computer to execute a dental prosthesis design process includes: searching a database storing data including structures of teeth including natural teeth to search for candidate teeth, which correspond to a part where a prosthesis is to be mounted on, based on information of a shape surrounding the part where the prosthesis is to be mounted on; putting priority levels on the candidate teeth by applying a predetermined rule to a matching degree of the searching; and outputting information of the candidate teeth based on the priority levels.Type: ApplicationFiled: August 4, 2015Publication date: November 26, 2015Inventors: TOSHIHISA FUJIWARA, TOSHIAKI MASE, GUOPING SUN, Junichi Arai
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Patent number: 9174478Abstract: There is provided a thermal transfer recording medium capable of obtaining high transfer sensitivity during high-speed printing, that is, decreasing the amount of a dye used in a dye layer; and preventing abnormal transfer during printing even after storage in a high-temperature and high-humidity environment. The thermal transfer recording medium (1) contains: a heat-resistant sliding layer (40) that is formed on one surface of a substrate (10); and an undercoat layer (20) and a dye layer (30) that are sequentially laminated on the other surface of the substrate (10), in which the undercoat layer (20) contains, as major components, a polyvinyl pyrrolidone and a polyvinyl alcohol having a crystallinity degree of 15% or higher, and the dye layer (30) contains an anthraquinone-based thermal transfer dye.Type: GrantFiled: September 14, 2012Date of Patent: November 3, 2015Assignee: Toppan Printing Co., Ltd.Inventors: Godai Fukunaga, Makiko Nitanai, Yasuo Sugishita, Junichi Arai, Yoko Hirai, Emi Ando
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Publication number: 20150248092Abstract: An image forming apparatus includes a time setting unit that sets a print allowable time according to the amount of advance payment, a usage time count unit that counts a usage time and a print allowance determination unit that determines, from the time setting unit and the usage time count unit, whether printing is allowed or prohibited. Before the time counted by the usage time count unit reaches the print allowable time, the print allowance determination unit allows the printing to be performed whereas after the time counted by the usage time count unit reaches the print allowable time, the print allowance determination unit prohibits the printing from being performed.Type: ApplicationFiled: February 27, 2015Publication date: September 3, 2015Applicant: KONICA MINOLTA, INC.Inventors: Michio TAKAHASHI, Toshiyuki TOKUNO, Kenji TAKI, Junichi ARAI
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Patent number: 9077347Abstract: An oven controlled crystal oscillator includes a crystal unit, a temperature control circuit, and a circuit board. The temperature control circuit is configured to control a temperature of the crystal unit. The crystal unit includes a flange that projects outward to an entire outer periphery in one end. The circuit board includes a depressed portion in which the flange is partially inserted. The temperature control circuit includes a power transistor, a thermistor as a temperature sensor, and a metal pattern. The power transistor becomes a heat source. The metal pattern commonly connects a ground terminal of the crystal unit, a collector of the power transistor, and a ground terminal of the thermistor. The crystal unit is positioned in a state where the flange is partially inserted in the depressed portion. The crystal unit is connected to the metal pattern.Type: GrantFiled: July 2, 2013Date of Patent: July 7, 2015Assignee: NIHON DEMPA KOGYO CO., LTD.Inventors: Takahiro Yoshimura, Junichi Arai