Patents by Inventor Masashi Wakui
Masashi Wakui 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: 11732714Abstract: A scroll compressor includes a balancer that rotates integrally with a rotary shaft. A bushing includes a cylindrical portion and an auxiliary weight portion. The auxiliary weight portion is arranged on the outer side of the cylindrical portion. The fitting hole is provided at a position where a moment about the eccentric shaft generated by a centrifugal force acting on the movable scroll due to rotation of the rotary shaft and a moment about the eccentric shaft generated by a centrifugal force acting on the auxiliary weight portion due to rotation of the rotary shaft are in the opposite directions. As viewed in the axial direction of the rotary shaft, the center of gravity of the bushing is located on the same side of a straight line including the center of the cylindrical portion and the center of the rotary shaft as the center of the eccentric shaft.Type: GrantFiled: June 30, 2021Date of Patent: August 22, 2023Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Hirofumi Kuma, Kazuo Murakami, Masashi Wakui
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Patent number: 11193490Abstract: A scroll compressor includes a balancer that rotates integrally with a rotary shaft. A bushing includes a cylindrical portion and an auxiliary weight portion. The auxiliary weight portion is arranged on the outer side of the cylindrical portion. The fitting hole is provided at a position where a moment about the eccentric shaft generated by a centrifugal force acting on the movable scroll due to rotation of the rotary shaft and a moment about the eccentric shaft generated by a centrifugal force acting on the auxiliary weight portion due to rotation of the rotary shaft are in the opposite directions. As viewed in the axial direction of the rotary shaft, the center of gravity of the bushing is located on the same side of a straight line including the center of the cylindrical portion and the center of the rotary shaft as the center of the eccentric shaft.Type: GrantFiled: March 28, 2019Date of Patent: December 7, 2021Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Hirofumi Kuma, Kazuo Murakami, Masashi Wakui
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Publication number: 20210324857Abstract: A scroll compressor includes a balancer that rotates integrally with a rotary shaft. A bushing includes a cylindrical portion and an auxiliary weight portion. The auxiliary weight portion is arranged on the outer side of the cylindrical portion. The fitting hole is provided at a position where a moment about the eccentric shaft generated by a centrifugal force acting on the movable scroll due to rotation of the rotary shaft and a moment about the eccentric shaft generated by a centrifugal force acting on the auxiliary weight portion due to rotation of the rotary shaft are in the opposite directions. As viewed in the axial direction of the rotary shaft, the center of gravity of the bushing is located on the same side of a straight line including the center of the cylindrical portion and the center of the rotary shaft as the center of the eccentric shaft.Type: ApplicationFiled: June 30, 2021Publication date: October 21, 2021Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Hirofumi KUMA, Kazuo Murakami, Masashi Wakui
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Patent number: 11101568Abstract: An antenna assembly includes a first antenna having a first length in a height direction, and a second antenna including a reflective surface having a second length in the height direction greater than or equal to the first length. The reflective surface of the second antenna is oriented towards a primary signal reception direction of the first antenna, and the reflective surface is configured to reflect a communication signal associated with the first antenna in order to increase a directional gain of the first antenna in the primary signal reception direction.Type: GrantFiled: March 27, 2020Date of Patent: August 24, 2021Inventors: Masashi Wakui, Antony Mihalopoulos
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Patent number: 8842052Abstract: An antenna apparatus that can suppress sensitivity degradation as much as possible to receive AM broadcasts and FM broadcasts even if an antenna height is decreased to 70 mm or less. An antenna board is vertically mounted on a planar antenna base, and a top portion is disposed to stride over the antenna board. An antenna element includes the top portion and an antenna pattern formed on the antenna board. A distance between the antenna base and a lower edge of the top portion is not less than 10 mm, and the lower edge of the top portion is bent downward. The top portion is configured such that an antenna capacitance of the antenna element becomes about 3 pF or more. A received signal from the antenna element is guided to an amplifier board through a connecting wire and amplified. An antenna case is fitted in the antenna base.Type: GrantFiled: February 22, 2013Date of Patent: September 23, 2014Assignee: Harada Industry Co., Ltd.Inventors: Masashi Wakui, Akio Kamiya, Nobuo Arayama
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Patent number: 8502742Abstract: An antenna apparatus that can suppress sensitivity degradation as much as possible to receive AM broadcasts and FM broadcasts even if an antenna height is decreased to 70 mm or less. An antenna board is vertically mounted on a planar antenna base, and a top portion is disposed to stride over the antenna board. An antenna element includes the top portion and an antenna pattern formed on the antenna board. A distance between the antenna base and a lower edge of the top portion is not less than 10 mm, and the lower edge of the top portion is bent downward. The top portion is configured such that an antenna capacitance of the antenna element becomes about 3 pF or more. A received signal from the antenna element is guided to an amplifier board through a connecting wire and amplified. An antenna case is fitted in the antenna base.Type: GrantFiled: September 5, 2012Date of Patent: August 6, 2013Assignee: Harada Industry Co., Ltd.Inventors: Masashi Wakui, Akio Kamiya, Nobuo Arayama
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Patent number: 8497807Abstract: An antenna apparatus that can suppress sensitivity degradation as much as possible to receive AM broadcasts and FM broadcasts even if an antenna height is decreased to 70 mm or less. An antenna board is vertically mounted on a planar antenna base, and a top portion is disposed to stride over the antenna board. An antenna element includes the top portion and an antenna pattern formed on the antenna board. A distance between the antenna base and a lower edge of the top portion is not less than 10 mm, and the lower edge of the top portion is bent downward. The top portion is configured such that an antenna capacitance of the antenna element becomes about 3 pF or more. A received signal from the antenna element is guided to an amplifier board through a connecting wire and amplified. An antenna case is fitted in the antenna base.Type: GrantFiled: March 19, 2009Date of Patent: July 30, 2013Assignee: Harada Industry Co., Ltd.Inventors: Masashi Wakui, Akio Kamiya, Nobuo Arayama
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Patent number: 8421693Abstract: Good electric characteristics are obtained even after an antenna being further incorporated into an antenna apparatus including an antenna case having a limited space. An antenna device 31 is formed on an antenna substrate 30 installed upright in an antenna base 20. A flat antenna unit 35 is fastened to the antenna base 20 so that the flat antenna unit 35 is immediately below the antenna device 31. If the wavelength of a center frequency in an operating frequency band of the flat antenna unit 35 is ?, an interval between an upper surface of the flat antenna unit 35 and a lower end of the antenna device 31 is set to about 0.25 ? or more. Accordingly, it becomes possible to make directional characteristics of radiation in a horizontal plane of the flat antenna unit 35 non-directive without being affected by the antenna device 31 and also to achieve good gain characteristics.Type: GrantFiled: August 22, 2008Date of Patent: April 16, 2013Assignee: Harada Industry Co., Ltd.Inventors: Motoki Ohshima, Jinichi Inoue, Masashi Wakui, Nobuo Arayama
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Publication number: 20120326934Abstract: An antenna apparatus that can suppress sensitivity degradation as much as possible to receive AM broadcasts and FM broadcasts even if an antenna height is decreased to 70 mm or less. An antenna board is vertically mounted on a planar antenna base, and a top portion is disposed to stride over the antenna board. An antenna element includes the top portion and an antenna pattern formed on the antenna board. A distance between the antenna base and a lower edge of the top portion is not less than 10 mm, and the lower edge of the top portion is bent downward. The top portion is configured such that an antenna capacitance of the antenna element becomes about 3 pF or more. A received signal from the antenna element is guided to an amplifier board through a connecting wire and amplified. An antenna case is fitted in the antenna base.Type: ApplicationFiled: September 5, 2012Publication date: December 27, 2012Applicant: NIPPON ANTENA KABUSHIKI KAISHAInventors: Masashi WAKUI, Akio KAMIYA, Nobuo ARAYAMA
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Patent number: 8159404Abstract: A helical element, which is operated in the frequency band of FM broadcast, is wound around the outer periphery of a rod-shaped support member 10. A line-shaped element 12, which is operated in the frequency band of terrestrial digital television broadcast, is disposed in a first groove 10a of a predetermined length formed on the outer periphery of the support member 10 from the lower end thereof. With this arrangement, a multi-frequency antenna 1, which is operated in the frequency band of FM broadcast and the frequency band of terrestrial digital television broadcast, can be arranged, and the entire length L of the helical element can be reduced and it can be operated in a plurality of frequency bands with the effect of the line-shaped element 12.Type: GrantFiled: October 11, 2007Date of Patent: April 17, 2012Assignee: Nippon Antena Kabushiki KaishaInventor: Masashi Wakui
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Publication number: 20100265147Abstract: An antenna apparatus that can suppress sensitivity degradation as much as possible to receive AM broadcasts and FM broadcasts even if an antenna height is decreased to 70 mm or less. An antenna board is vertically mounted on a planar antenna base, and a top portion is disposed to stride over the antenna board. An antenna element includes the top portion and an antenna pattern formed on the antenna board. A distance between the antenna base and a lower edge of the top portion is not less than 10 mm, and the lower edge of the top portion is bent downward. The top portion is configured such that an antenna capacitance of the antenna element becomes about 3 pF or more. A received signal from the antenna element is guided to an amplifier board through a connecting wire and amplified. An antenna case is fitted in the antenna base.Type: ApplicationFiled: March 19, 2009Publication date: October 21, 2010Applicant: NIPPON ANTENA KABUSHIKI KAISHAInventors: Masashi Wakui, Akio Kamiya, Nobuo Arayama
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Publication number: 20100013724Abstract: Good electric characteristics are obtained even after an antenna being further incorporated into an antenna apparatus including an antenna case having a limited space. An antenna device 31 is formed on an antenna substrate installed upright in an antenna base 20. A flat antenna unit is fastened to the antenna base 20 so that the flat antenna unit 35 is immediately below the antenna device 31. If the wavelength of a center frequency in an operating frequency band of the flat antenna unit 35 is ?, an interval between an upper surface of the flat antenna unit 35 and a lower end of the antenna device 31 is set to about 0.25? or more. Accordingly, it becomes possible to make directional characteristics of radiation in a horizontal plane of the flat antenna unit 35 non-directive without being affected by the antenna device 31 and also to achieve good gain characteristics.Type: ApplicationFiled: August 22, 2008Publication date: January 21, 2010Applicant: NIPPON ANTENA KABUSHIKI KAISHAInventors: Motoki Ohshima, Jinichi Inoue, Masashi Wakui, Nobuo Arayama
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Publication number: 20090284441Abstract: A helical element, which is operated in the frequency band of FM broadcast, is wound around the outer periphery of a rod-shaped support member 10. A line-shaped element 12, which is operated in the frequency band of terrestrial digital television broadcast, is disposed in a first groove 10a of a predetermined length formed on the outer periphery of the support member 10 from the lower end thereof. With this arrangement, a multi-frequency antenna 1, which is operated in the frequency band of FM broadcast and the frequency band of terrestrial digital television broadcast, can be arranged, and the entire length L of the helical element can be reduced and it can be operated in a plurality of frequency bands with the effect of the line-shaped element 12.Type: ApplicationFiled: October 11, 2007Publication date: November 19, 2009Applicant: NIPPON ANTENA KABUSHIKI KAISHAInventor: Masashi Wakui
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Patent number: 6693596Abstract: An umbrella-shaped crown section 5a is provided on the front end of a linear element section 5b. The front end of the umbrella-shaped crown section 5a and the power supply section 6a at the lower end of the element section 5b are connected by means of a folded element 5c. Thereby, the dual-frequency antenna 5 is able to operate in two different frequency bands.Type: GrantFiled: April 23, 2002Date of Patent: February 17, 2004Assignee: Nippon Antena Kabushiki KaishaInventors: Masashi Wakui, Hiroshi Shimizu
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Publication number: 20020171593Abstract: An umbrella-shaped crown section 5a is provided on the front end of a linear element section 5b. The front end of the umbrella-shaped crown section 5a and the power supply section 6a at the lower end of the element section 5b are connected by means of a folded element 5c. Thereby, the dual-frequency antenna 5 is able to operate in two different frequency bands.Type: ApplicationFiled: April 23, 2002Publication date: November 21, 2002Inventors: Masashi Wakui, Hiroshi Shimizu