Patents by Inventor Tomokazu Sonozaki
Tomokazu Sonozaki 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: 11133579Abstract: A vehicle-mounted fin type antenna device 1 includes a plurality of antenna units 5a to 5d, a circuit board 4 electrically connected to the plurality of antenna units 5a to 5d, and a radome 3 accommodating the plurality of antenna units 5a to 5d and the circuit board 4 in an inside of the radome. The radome 3 is formed of a resin material that contains a crystalline resin as a base resin and has a deflection temperature under load of 100° C. or more.Type: GrantFiled: October 18, 2018Date of Patent: September 28, 2021Assignee: NTN CORPORATIONInventors: Tomokazu Sonozaki, Natsuhiko Mori, Fuminori Satoji, Katsuo Shibahara
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Publication number: 20210180591Abstract: Provided is an internal gear pump in which a casing and a cover can be easily positioned to each other when the casing and the cover are assembled, and they can be prevented from separating or falling off. In an internal gear pump 1, at least one of a casing 5 and a cover 6 is a molded body of a resin composition and the like. The casing 5 and the cover 6 are fixed with a plurality of protrusion parts protruding from one of the casing 5 and the cover 6 fitted in the other. The protrusion parts protrude from the casing of metal bushes 9 fixed to the casing 5, and the casing 5 and the cover 6 are integrated by bolts 13 passing through the metal bushes 9 across these two members.Type: ApplicationFiled: November 30, 2018Publication date: June 17, 2021Inventors: Tomokazu SONOZAKI, Hiroshi AKAI, Kei HATTORI, Takayuki ITO
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Publication number: 20210131428Abstract: To provide an internal gear pump capable of suppressing a liquid discharge amount during a high-speed rotation by controlling discharge pressure while achieving reduction in size, weight, cost, and the like. An internal gear pump 1 includes: a trochoid 4 in which an inner rotor 3 having a plurality of external teeth is accommodated inside an outer rotor 2 having a plurality of internal teeth in an eccentrically rotatable manner with the external teeth and the internal teeth interdigitated with each other, and a suction-side volume chamber for sucking liquid and a discharge-side volume chamber for discharging the liquid sucked into the suction-side volume chamber are formed between the internal teeth and the external teeth; a casing formed with a recessed part 8 for accommodating the trochoid 4; and a cover 6 that closes the recessed part 8.Type: ApplicationFiled: December 21, 2017Publication date: May 6, 2021Inventors: Kei HATTORI, Hiroshi AKAI, Tomokazu SONOZAKI, Takayuki ITO
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Publication number: 20200295443Abstract: A vehicle-mounted fin type antenna device 1 includes a plurality of antenna units 5a to 5d, a circuit board 4 electrically connected to the plurality of antenna units 5a to 5d, and a radome 3 accommodating the plurality of antenna units 5a to 5d and the circuit board 4 in an inside of the radome. The radome 3 is formed of a resin material that contains a crystalline resin as a base resin and has a deflection temperature under load of 100° C. or more.Type: ApplicationFiled: October 18, 2018Publication date: September 17, 2020Inventors: Tomokazu SONOZAKI, Natsuhiko MORI, Fuminori SATOJI, Katsuo SHIBAHARA
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Patent number: 10355364Abstract: A waveguide tube slot antenna (1) includes a waveguide tube (10) that is made of a resin and includes a waveguide (2) extending in a tube axis direction; and a plurality of radiating slots (3) provided in the waveguide tube (10). The waveguide tube (10) includes first and second waveguide tube forming members (11 and 12) each having a traverse section having a shape with an end at each part in an extending direction of the waveguide (2), and is configured to define the waveguide (2) by being coupled to each other. The waveguide tube slot antenna (1) includes metal cores (20) disposed along the tube axis direction, and the metal cores (20) are held by both the waveguide tube forming members (11 and 12).Type: GrantFiled: August 31, 2016Date of Patent: July 16, 2019Assignee: NTN CORPORATIONInventors: Tomokazu Sonozaki, Hiroshi Akai, Kei Hattori
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Patent number: 10079426Abstract: Provided is a chip antenna (1), including: an antenna pattern (3); and a base body (2), which has a hexahedral shape, the antenna pattern (3) including: an antenna part (31), which is held on an upper surface of the base body (2); and a plurality of terminal parts (32), which are held on a lower surface of the base body (2), each of the plurality of terminal parts (32) being soldered to a circuit board (10), in which the antenna pattern (13) further includes a band-shaped protruding part (34), which extends in a long-side direction of the antenna part (31), and is embedded in the base body (2), and the band-shaped protruding part (34) is provided at least along a range of each of two long sides of the antenna part (31) excluding a range in which the plurality of terminal parts (32) are arranged.Type: GrantFiled: May 18, 2015Date of Patent: September 18, 2018Assignee: NTN CORPORATIONInventors: Tomokazu Sonozaki, Hiroyuki Noda, Natsuhiko Mori
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Publication number: 20180254563Abstract: A waveguide tube slot antenna (1) includes a waveguide tube (10) that is made of a resin and includes a waveguide (2) extending in a tube axis direction; and a plurality of radiating slots (3) provided in the waveguide tube (10). The waveguide tube (10) includes first and second waveguide tube forming members (11 and 12) each having a traverse section having a shape with an end at each part in an extending direction of the waveguide (2), and is configured to define the waveguide (2) by being coupled to each other. The waveguide tube slot antenna (1) includes metal cores (20) disposed along the tube axis direction, and the metal cores (20) are held by both the waveguide tube forming members (11 and 12).Type: ApplicationFiled: August 31, 2016Publication date: September 6, 2018Inventors: Tomokazu SONOZAKI, Hiroshi AKAI, Kei HATTORI
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Patent number: 9912056Abstract: A multiband antenna includes a first antenna unit (10) and a second antenna unit (20). The first antenna unit (10) includes a first antenna pattern (11) formed of a conductor and a first substrate (12) formed of a dielectric, for holding the first antenna pattern (11). The second antenna unit (20) includes a second antenna pattern (21) formed of a conductor and a second substrate (22) formed of a dielectric having a dielectric constant different from the dielectric constant of the first substrate (12), for holding the second antenna pattern (21). In the multiband antenna, by injection molding the second substrate (22) with the first antenna unit (10) and the second antenna pattern (21), which being insert components, the first antenna unit (10) and the second antenna unit (20) are integrated.Type: GrantFiled: March 14, 2013Date of Patent: March 6, 2018Assignee: NTN CORPORATIONInventors: Hiroyuki Noda, Tomokazu Sonozaki
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Publication number: 20180048071Abstract: Provided is a waveguide tube slot antenna (A), including: a waveguide tube (10) having a transverse section having a rectangular shape in each part of a waveguide (2) in an extending direction thereof; and a plurality of radiating slots (3) arranged in the waveguide tube (10) at predetermined intervals, in which: the waveguide tube (10) includes a first waveguide tube forming member (11) and a second waveguide tube forming member (12) each having the transverse section having a shape with an end, the first waveguide tube forming member (11) and the second waveguide tube forming member (12) being configured to define the waveguide (2) by being coupled to each other; and the first waveguide tube forming member (11) is formed to have a flat shape and includes the plurality of radiating slots (3).Type: ApplicationFiled: October 5, 2017Publication date: February 15, 2018Inventors: Tomokazu SONOZAKI, Hiroyuki NODA, Natsuhiko MORI
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Patent number: 9812785Abstract: Provided is a waveguide tube slot antenna (A), including: a waveguide tube (10) having a transverse section having a rectangular shape in each part of a waveguide (2) in an extending direction thereof; and a plurality of radiating slots (3) arranged in the waveguide tube (10) at predetermined intervals, in which: the waveguide tube (10) includes a first waveguide tube forming member (11) and a second waveguide tube forming member (12) each having the transverse section having a shape with an end, the first waveguide tube forming member (11) and the second waveguide tube forming member (12) being configured to define the waveguide (2) by being coupled to each other; and the first waveguide tube forming member (11) is formed to have a flat shape and includes the plurality of radiating slots (3).Type: GrantFiled: June 16, 2014Date of Patent: November 7, 2017Assignee: NTN CORPORATIONInventors: Tomokazu Sonozaki, Hiroyuki Noda, Natsuhiko Mori
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Patent number: 9685708Abstract: Provided is a waveguide tube slot antenna (1) including: a plurality of waveguides (2) arranged in parallel with each other; a plurality of radiating slots (3) formed along each of the plurality of waveguides (2); and a plurality of waveguide tubes (10) connected in parallel with each other, in which the plurality of waveguide tubes (10) each include a first waveguide tube forming member (11) and a second waveguide tube forming member (12) each having a transverse section having a shape with an end, the first waveguide tube forming member and the second waveguide tube forming member being configured to define one of the plurality of waveguides (2) by being connected to each other.Type: GrantFiled: July 25, 2013Date of Patent: June 20, 2017Assignee: NTN CORPORATIONInventors: Tomokazu Sonozaki, Hiroyuki Noda, Natsuhiko Mori
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Publication number: 20170117610Abstract: Provided is a chip antenna (1), including: an antenna pattern (3); and a base body (2), which has a hexahedral shape, the antenna pattern (3) including: an antenna part (31), which is held on an upper surface of the base body (2); and a plurality of terminal parts (32), which are held on a lower surface of the base body (2), each of the plurality of terminal parts (32) being soldered to a circuit board (10), in which the antenna pattern (13) further includes a band-shaped protruding part (34), which extends in a long-side direction of the antenna part (31), and is embedded in the base body (2), and the band-shaped protruding part (34) is provided at least along a range of each of two long sides of the antenna part (31) excluding a range in which the plurality of terminal parts (32) are arranged.Type: ApplicationFiled: May 18, 2015Publication date: April 27, 2017Inventors: Tomokazu SONOZAKI, Hiroyuki NODA, Natsuhiko MORI
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Publication number: 20170110783Abstract: Provided is a chip antenna (1), including: an antenna pattern (3) formed through bending a conductive plate into a three-dimensional shape, the antenna pattern including an antenna part (31) and a terminal part (32) electrically connected to a circuit substrate (10); and a base body (2) formed through injection molding a resin with the antenna pattern (3) serving as an insert component, in which the base body (2) includes: a rectangular plate-like top wall (21) holding the antenna part (31) on a surface thereof; and a rectangular plate-like vertical wall (22) provided upright along a long-side direction of the top wall (21) with one end (upper end) thereof in a short-side direction being connected to the top wall (21) and with another end (lower end) thereof in the short-side direction holding the terminal part (32).Type: ApplicationFiled: March 6, 2015Publication date: April 20, 2017Inventors: Tomokazu SONOZAKI, Hiroyuki NODA, Natsuhiko MORI
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Publication number: 20160372833Abstract: Provided is a waveguide tube slot antenna (A), including: a waveguide tube (10) having a transverse section having a rectangular shape in each part of a waveguide (2) in an extending direction thereof; and a plurality of radiating slots (3) arranged in the waveguide tube (10) at predetermined intervals, in which: the waveguide tube (10) includes a first waveguide tube forming member (11) and a second waveguide tube forming member (12) each having the transverse section having a shape with an end, the first waveguide tube forming member (11) and the second waveguide tube forming member (12) being configured to define the waveguide (2) by being coupled to each other; and the first waveguide tube forming member (11) is formed to have a flat shape and includes the plurality of radiating slots (3).Type: ApplicationFiled: June 16, 2014Publication date: December 22, 2016Inventors: Tomokazu SONOZAKI, Hiroyuki NODA, Natsuhiko MORI
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Publication number: 20150229027Abstract: Provided is a waveguide tube slot antenna (1) including: a plurality of waveguides (2) arranged in parallel with each other; a plurality of radiating slots (3) formed along each of the plurality of waveguides (2); and a plurality of waveguide tubes (10) connected in parallel with each other, in which the plurality of waveguide tubes (10) each include a first waveguide tube forming member (11) and a second waveguide tube forming member (12) each having a transverse section having a shape with an end, the first waveguide tube forming member and the second waveguide tube forming member being configured to define one of the plurality of waveguides (2) by being connected to each other.Type: ApplicationFiled: July 25, 2013Publication date: August 13, 2015Applicant: NTN CORPORATIONInventors: Tomokazu Sonozaki, Hiroyuki Noda, Natsuhiko Mori
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Publication number: 20150061963Abstract: A multiband antenna includes a first antenna unit (10) and a second antenna unit (20). The first antenna unit (10) includes a first antenna pattern (11) formed of a conductor and a first substrate (12) formed of a dielectric, for holding the first antenna pattern (11). The second antenna unit (20) includes a second antenna pattern (21) formed of a conductor and a second substrate (22) formed of a dielectric having a dielectric constant different from the dielectric constant of the first substrate (12), for holding the second antenna pattern (21). In the multiband antenna, by injection molding the second substrate (22) with the first antenna unit (10) and the second antenna pattern (21), which being insert components, the first antenna unit (10) and the second antenna unit (20) are integrated.Type: ApplicationFiled: March 14, 2013Publication date: March 5, 2015Applicant: NTN CORPORATIONInventors: Hiroyuki Noda, Tomokazu Sonozaki
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Patent number: 7387444Abstract: Disclosed is an oil-impregnated sintered bearing in which local relative sliding between the oil-impregnated sintered bearing and the shaft is avoided, thereby mitigating stress concentration on the bearing surface of the oil-impregnated sintered bearing. An oil-impregnated sintered bearing 1 which has in its inner periphery a bearing surface 1a making relative sliding with the outer peripheral surface 22a of a shaft 22 and which has at both axial ends of the bearing surface 1a crowning portions 1c which are of a configuration satisfying the following conditions: 1.75×10?3??/b1?5.2×10?2, and 1.75×10?3??/b2?5.2×10?2, and 0.2?(b1+b2)/a?0.8, where ? is the maximum radial drop amount of the crowning portions 1c, b1 is the axial length of the crowning portion 1c at one axial end; b2 is the axial length of the crowning portion 1c at the other axial end; and a is the total axial length of the oil-impregnated sintered bearing 1.Type: GrantFiled: October 27, 2005Date of Patent: June 17, 2008Assignee: NTN CorporationInventors: Seiji Shimizu, Tomokazu Sonozaki
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Publication number: 20060093247Abstract: Disclosed is an oil-impregnated sintered bearing in which local relative sliding between the oil-impregnated sintered bearing and the shaft is avoided, thereby mitigating stress concentration on the bearing surface of the oil-impregnated sintered bearing. An oil-impregnated sintered bearing 1 which has in its inner periphery a bearing surface 1a making relative sliding with the outer peripheral surface 22a of a shaft 22 and which has at both axial ends of the bearing surface 1a crowning portions 1c which are of a configuration satisfying the following conditions: 1.75×10?3??/b1?5.2×10?2, and 1.75×10?3??/b2?5.2×10?2, and 0.2?(b1+b2)/a?0.8, where ? is the maximum radial drop amount of the crowning portions 1c, b1 is the axial length of the crowning portion 1c at one axial end; b2 is the axial length of the crowning portion 1c at the other axial end; and a is the total axial length of the oil-impregnated sintered bearing 1.Type: ApplicationFiled: October 27, 2005Publication date: May 4, 2006Inventors: Seiji Shimizu, Tomokazu Sonozaki