Patents by Inventor Kenji Hatazawa
Kenji Hatazawa 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: 11883567Abstract: Provided herein is a photocatalytic device that is easy to maintain. A photocatalytic device is provided that includes a cabinet, a photocatalytic unit disposed inside the cabinet and including a photocatalyst, a light configured to provide light to the photocatalyst, and a fan configured to send airflow to a surface of the photocatalyst. The photocatalytic unit is configured to be detachable from the cabinet.Type: GrantFiled: August 19, 2020Date of Patent: January 30, 2024Assignee: KALTECH CORPORATIONInventors: Junichi Somei, Kenji Hatazawa, Toyohiro Harazono, Hirohiko Ueda
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Patent number: 11448245Abstract: A wall attachment system is provided that includes an object to be mounted, and an attachment unit for attaching the object to be mounted to a wall surface. The object to be mounted has a back surface installed with a metal. The attachment unit has a front surface installed with a magnet. The wall attachment system is configured so that the metal and the magnet contact each other in response to the object to be mounted being set in position for installation on the attachment unit.Type: GrantFiled: August 19, 2020Date of Patent: September 20, 2022Assignee: KALTECH CORPORATIONInventors: Junichi Somei, Kenji Hatazawa, Toyohiro Harazono, Hirohiko Ueda
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Publication number: 20210180624Abstract: A wall attachment system is provided that includes an object to be mounted, and an attachment unit for attaching the object to be mounted to a wall surface. The object to be mounted has a back surface installed with a metal. The attachment unit has a front surface installed with a magnet. The wall attachment system is configured so that the metal and the magnet contact each other in response to the object to be mounted being set in position for installation on the attachment unit.Type: ApplicationFiled: August 19, 2020Publication date: June 17, 2021Inventors: Junichi SOMEI, Kenji HATAZAWA, Toyohiro HARAZONO, Hirohiko UEDA
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Publication number: 20210060199Abstract: Provided herein is a photocatalytic device that is easy to maintain. A photocatalytic device is provided that includes a cabinet, a photocatalytic unit disposed inside the cabinet and including a photocatalyst, a light configured to provide light to the photocatalyst, and a fan configured to send airflow to a surface of the photocatalyst. The photocatalytic unit is configured to be detachable from the cabinet.Type: ApplicationFiled: August 19, 2020Publication date: March 4, 2021Inventors: Junichi SOMEI, Kenji HATAZAWA, Toyohiro HARAZONO, Hirohiko UEDA
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Publication number: 20180292059Abstract: A light-emitting device includes a plurality of light source units each having a laser light source that outputs excitation light, and a phosphor unit that receives the excitation light and emits fluorescence. At least two light source units of the plurality of light source units are configured so that excitation light beams overlap each other on a light irradiation surface of the phosphor unit when the light irradiation surface is irradiated with the excitation light beams and so that longitudinal directions of long shapes of projection light beams on the light irradiation surface by the excitation light beams projected onto the light irradiation surface are parallel or substantially parallel to each other.Type: ApplicationFiled: August 10, 2016Publication date: October 11, 2018Inventors: MOTOI NAGAMORI, KENJI HATAZAWA, KOJI TAKAHASHI, YOSHINOBU KAWAGUCHI
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Patent number: 8985793Abstract: An illumination device with a toning function in which possibility of moisture and dust intruding into the case is reduced with a simple mechanism is realized.Type: GrantFiled: June 27, 2011Date of Patent: March 24, 2015Assignee: Sharp Kabushiki KaishaInventors: Shinji Osaki, Toyonori Uemura, Toshio Hata, Junichi Somei, Yuji Kozuma, Kenji Hatazawa, Tomokazu Nada, Makoto Agatani, Shinya Ishizaki, Tatsuya Morioka, Makoto Matsuda
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Publication number: 20130128493Abstract: An illumination device with a toning function in which possibility of moisture and dust intruding into the case is reduced with a simple mechanism is realized.Type: ApplicationFiled: June 27, 2011Publication date: May 23, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Shinji Osaki, Toyonori Uemura, Toshio Hata, Junichi Somei, Yuji Kozuma, Kenji Hatazawa, Tomokazu Nada, Makoto Agatani, Shinya Ishizaki, Tatsuya Morioka, Makoto Matsuda
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Patent number: 7948442Abstract: A radio wave receiving converter includes a main body portion including a first waveguide having a male thread on an outer circumference of the first waveguide, a feedhorn including a second waveguide having a female thread on an inner circumference of the second waveguide, a ring-shaped member including a circumferential wall portion and an annular step portion such that a groove portion where a portion near a tip of the second waveguide is inserted between the ring-shaped member and the outer circumference of the first waveguide is formed, and a sealing agent injected into a groove portion “b”. By this configuration, there is provided a radio wave receiving converter that has a simple structure of a connecting portion, has improved productivity of the components and assemblability of the finished components, and can achieve a reduction in size and weight.Type: GrantFiled: July 24, 2008Date of Patent: May 24, 2011Assignee: Sharp Kabushiki KaishaInventor: Kenji Hatazawa
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Publication number: 20090027290Abstract: A radio wave receiving converter includes a main body portion including a first waveguide having a male thread on an outer circumference of the first waveguide, a feedhorn including a second waveguide having a female thread on an inner circumference of the second waveguide, a ring-shaped member including a circumferential wall portion and an annular step portion such that a groove portion where a portion near a tip of the second waveguide is inserted between the ring-shaped member and the outer circumference of the first waveguide is formed, and a sealing agent injected into a groove portion “b”. By this configuration, there is provided a radio wave receiving converter that has a simple structure of a connecting portion, has improved productivity of the components and assemblability of the finished components, and can achieve a reduction in size and weight.Type: ApplicationFiled: July 24, 2008Publication date: January 29, 2009Inventor: Kenji HATAZAWA
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Patent number: 7342870Abstract: A chuck portion provided to keep a fixed positional relation with respect to a housing, holds a light source unit detachably. This chuck portion is displaced from an advanced position to a retracted position to displace the light source unit which is in a provisional position with respect to the housing, in a direction being away from the housing along a reference axis and the light source unit is retracted from the housing. In a state where the light source unit which is in this position is held by the chuck portion, the light source unit is slid and displaced in a direction crossing the reference axis with respect to the housing, angularly displaced about the reference axis and an axis crossing the reference axis, and then fixed to the housing.Type: GrantFiled: May 28, 2004Date of Patent: March 11, 2008Assignee: Sharp Kabushiki KaishaInventors: Masahiro Nakamura, Akiho Yoshizawa, Kenji Hatazawa
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Patent number: 7194749Abstract: An objective lens actuator includes an objective-lens-side main magnet and two stationary-holder-side main magnets mounted to a base body. The objective-lens-side main magnet is positioned to face the two stationary-holder-side main magnets across a gap. The magnets form a magnetic circuit producing magnetic flux extending from either the objective-lens-side main magnet or the two stationary-holder-side main magnets to the remaining magnet(s). The objective lens holder includes a focusing coil and a tilting coil. The focusing coil is located so that the objective-lens-side main magnet and the two stationary-holder-side main magnets are present outside and inside a winding of the focusing coil respectively. The tilting coil is located so that: the objective-lens-side main magnet is present outside a winding of the tilting coil; one of the stationary-holder-side main magnets is present inside the winding; and the remaining one of the stationary-holder-side main magnets is present outside the winding.Type: GrantFiled: December 19, 2003Date of Patent: March 20, 2007Assignee: Sharp Kabushiki KaishaInventor: Kenji Hatazawa
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Publication number: 20060018359Abstract: A structure for optical axis adjustment of a laser diode is provided which makes it possible to easily perform optical axis adjustment and inclination adjustment of the optical axis and makes it possible to shorten the operation time necessary for the assembly of the apparatus. The structure for optical axis adjustment includes a housing; a base that is supported so as to be movable along one surface portion of the housing; a laser diode holder that is supported on the base so as to be tiltingly movable and supports a laser diode; and first and second pressing plates that press and movably support the base and the laser diode holder on the housing.Type: ApplicationFiled: July 22, 2005Publication date: January 26, 2006Inventors: Akiho Yoshizawa, Kenji Hatazawa
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Publication number: 20050025030Abstract: A chuck portion provided to keep a fixed positional relation with respect to a housing, holds a light source unit detachably. This chuck portion is displaced from an advanced position to a retracted position to displace the light source unit which is in a provisional position with respect to the housing, in a direction being away from the housing along a reference axis and the light source unit is retracted from the housing. In a state where the light source unit which is in this position is held by the chuck portion, the light source unit is slid and displaced in a direction crossing the reference axis with respect to the housing, angularly displaced about the reference axis and an axis crossing the reference axis, and then fixed to the housing.Type: ApplicationFiled: May 28, 2004Publication date: February 3, 2005Inventors: Masahiro Nakamura, Akiho Yoshizawa, Kenji Hatazawa
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Patent number: 6785509Abstract: In a converter for satellite broadcast reception having a fixing structure provided with a circuit board, a plurality of radio-frequency circuits mounted on the circuit board and separated from one another by a grounding pattern, a chassis having ribs arranged in a pattern that corresponds to the grounding pattern, and a mount plate placed on the back surface of the circuit board, a rubber plate having resilience is placed between the circuit board and the mount plate. This permits the grounding pressure with which the grounding pattern of the circuit board is kept in contact with the chassis to be distributed uniformly, and thereby permits stable grounding to be achieved.Type: GrantFiled: January 4, 2000Date of Patent: August 31, 2004Assignee: Sharp Kabushiki KaishaInventor: Kenji Hatazawa
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Publication number: 20040130978Abstract: An objective lens actuator includes an objective-lens-side main magnet and two stationary-holder-side main magnets mounted to a base body. The objective-lens-side main magnet is positioned to face the two stationary-holder-side main magnets across a gap. The magnets form a magnetic circuit producing magnetic flux extending from either the objective-lens-side main magnet or the two stationary-holder-side main magnets to the remaining magnet(s). The objective lens holder includes a focusing coil and a tilting coil. The focusing coil is located so that the objective-lens-side main magnet and the two stationary-holder-side main magnets are present outside and inside a winding of the focusing coil respectively. The tilting coil is located so that: the objective-lens-side main magnet is present outside a winding of the tilting coil; one of the stationary-holder-side main magnets is present inside the winding; and the remaining one of the stationary-holder-side main magnets is present outside the winding.Type: ApplicationFiled: December 19, 2003Publication date: July 8, 2004Applicant: SHARP KABUSHIKI KAISHAInventor: Kenji Hatazawa
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Patent number: 6261110Abstract: A converter for receiving satellite broadcasting includes a converter main body, a junction portion, provided to converter main body, to connect an interconnection member, and an extensible/retractable waterproof cover attached to junction portion. As waterproof cover is retracted, interconnection member is connected to junction portion. After the attaching operation, waterproof cover is expanded for preventing water penetration.Type: GrantFiled: November 12, 1998Date of Patent: July 17, 2001Assignee: Sharp Kabushiki KaishaInventor: Kenji Hatazawa
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Patent number: 5374938Abstract: A waveguide to microstrip converter allowing size reduction as well as providing good cross polar discrimination and input VSWR characteristic. The waveguide to microstrip converter includes a structure of an orthogonal transducer formed of a circular waveguide and a rectangular waveguide integrally formed with and orthogonal to the circular waveguide. A first probe and a second probe are respectively coupled to the circular waveguide and rectangular waveguide. An output terminal of the first probe and an output terminal of the second probe are formed on the same plane and connected to respective microstrip lines.Type: GrantFiled: January 21, 1993Date of Patent: December 20, 1994Assignee: Sharp Kabushiki KaishaInventors: Kenji Hatazawa, Hiroyuki Mukai, Junichi Somei