Patents by Inventor Katsumi Naitoh
Katsumi Naitoh 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: 11346580Abstract: High intensity combustion and low intensity combustion are carried out together, to stabilize flames and to hold down the emission of carbon monoxide. An air-fuel mixture outlet member (back plate) that includes a single or a plurality of outlet(s) (air-fuel mixture outlet(s)) out of which an air-fuel mixture (GA) flows is include, and a metal fiber knitting body (metal knit) that covers the air-fuel mixture outlet member is included. Therefor, the air-fuel mixture, which is made to flow out of the outlet(s), passes through the metal fiber knitting body (metal knit) and is combusted, a flame of low intensity (flame) is generated together with a flame of high intensity (flame) by combustion of the air-fuel mixture, and the flame of low intensity holds the flame of high intensity.Type: GrantFiled: December 20, 2017Date of Patent: May 31, 2022Assignee: PURPOSE CO., LTD.Inventors: Katsumi Naitoh, Yasunori Katoh, Jun Aiso, Kentaro Suzuki
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Patent number: 10281173Abstract: High intensity combustion and low intensity combustion are carried out together, to stabilize flames and to hold down the emission of carbon monoxide. An air-fuel mixture outlet member (back plate) that includes a single or a plurality of outlet(s) (air-fuel mixture outlet(s)) out of which an air-fuel mixture (GA) flows is included, and a metal fiber knitting body (metal knit) that covers the air-fuel mixture outlet member is included. Therefore, the air-fuel mixture, which is made to flow out of the outlet(s), passes through the metal fiber knitting body (metal knit) and is combusted, a flame of low intensity is generated together with a flame of high intensity by combustion of the air-fuel mixture, and the flame of low intensity holds the flame of high intensity.Type: GrantFiled: June 21, 2013Date of Patent: May 7, 2019Assignee: PURPOSE CO., LTD.Inventors: Katsumi Naitoh, Yasunori Katoh, Jun Aiso, Kentaro Suzuki
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Publication number: 20180135888Abstract: High intensity combustion and low intensity combustion are carried out together, to stabilize flames and to hold down the emission of carbon monoxide. An air-fuel mixture outlet member (back plate) that includes a single or a plurality of outlet(s) (air-fuel mixture outlet(s)) out of which an air-fuel mixture (GA) flows is include, and a metal fiber knitting body (metal knit) that covers the air-fuel mixture outlet member is included. Therefor, the air-fuel mixture, which is made to flow out of the outlet(s), passes through the metal fiber knitting body (metal knit) and is combusted, a flame of low intensity (flame) is generated together with a flame of high intensity (flame) by combustion of the air-fuel mixture, and the flame of low intensity holds the flame of high intensity.Type: ApplicationFiled: December 20, 2017Publication date: May 17, 2018Applicant: PURPOSE CO., LTD.Inventors: Katsumi Naitoh, Yasunori Katoh, Jun Aiso, Kentaro Suzuki
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Patent number: 9927143Abstract: A burner includes a first burner port that generates a first flame, a gap that surrounds the first burner port, and a plurality of second burner ports that are disposed on either side of the gap, the second burner ports generating second flames to hold the first flame. The first burner port combusts a first mixture (lean mixture) to generate the first flame (lean flame). The first mixture includes air more than fuel gas. A gap that surrounds the first burner port is formed. A plurality of the second burner ports are arranged on either side of the gap. The second burner ports combust a second mixture (rich mixture) to generate the second flames (rich flames) and hold the first flame. The air-fuel ratio of the second mixture is smaller than the first mixture.Type: GrantFiled: January 27, 2015Date of Patent: March 27, 2018Assignee: PURPOSE CO., LTD.Inventors: Katsumi Naitoh, Yoshiaki Sano
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Publication number: 20180031230Abstract: A burner includes plural burner ports that produce flames using a first air-fuel mixture and plural auxiliary burner ports that are disposed in a circumference of the burner ports, the plurality of the auxiliary burner ports producing an auxiliary flame using a second air-fuel mixture whose an air ratio is different from an air ratio of the first air-fuel mixture. The air ratios of the first air-fuel mixture and the second air-fuel mixture are each higher than 1.Type: ApplicationFiled: June 22, 2017Publication date: February 1, 2018Applicant: PURPOSE CO., LTD.Inventors: Katsumi Naitoh, Yoshiaki Sano
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Publication number: 20150253035Abstract: A burner includes a first burner port that generates a first flame, a gap that surrounds the first burner port, and a plurality of second burner ports that are disposed on either side of the gap, the second burner ports generating second flames to hold the first flame. The first burner port combusts a first mixture (lean mixture) to generate the first flame (lean flame). The first mixture includes air more than fuel gas. A gap that surrounds the first burner port is formed. A plurality of the second burner ports are arranged on either side of the gap. The second burner ports combust a second mixture (rich mixture) to generate the second flames (rich flames) and hold the first flame. The air-fuel ratio of the second mixture is smaller than the first mixture.Type: ApplicationFiled: January 27, 2015Publication date: September 10, 2015Applicant: PURPOSE CO., LTD.Inventors: Katsumi Naitoh, Yoshiaki Sano
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Patent number: 8821154Abstract: A combustion apparatus. Combustion means (burner) generates flame by combustion. Air supply means (intake fan) supplies air to the combustion means. Flame current detecting means (FRB) is set at a certain detection position and detects a flame current value included in the flame which is generated by the combustion means. Determination means (control device) determines a distribution where the flame current value that is detected is included for the flame current detecting means. Control means (control device), when the flame current value is not included in a distribution, which is set as normal values, outputs a control command of increasing or decreasing at least one of the supply of the air by the air supply means and the supply of fuel based on a determination result by the determination means.Type: GrantFiled: November 9, 2010Date of Patent: September 2, 2014Assignee: Purpose Company LimitedInventors: Akihito Yamashita, Kazushi Iwama, Yuichi Mochizuki, Katsumi Naitoh
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Publication number: 20140000534Abstract: High intensity combustion and low intensity combustion are carried out together, to stabilize flames and to hold down the emission of carbon monoxide. An air-fuel mixture outlet member (back plate) that includes a single or a plurality of outlet(s) (air-fuel mixture outlet(s)) out of which an air-fuel mixture (GA) flows is include, and a metal fiber knitting body (metal knit) that covers the air-fuel mixture outlet member is included. Therefor, the air-fuel mixture, which is made to flow out of the outlet(s), passes through the metal fiber knitting body (metal knit) and is combusted, a flame of low intensity (flame) is generated together with a flame of high intensity (flame) by combustion of the air-fuel mixture, and the flame of low intensity holds the flame of high intensity.Type: ApplicationFiled: June 21, 2013Publication date: January 2, 2014Inventors: Katsumi Naitoh, Yasunori Katoh, Jun Aiso, Kentaro Suzuki
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Publication number: 20120115093Abstract: A combustion apparatus. Combustion means (burner) generates flame by combustion. Air supply means (intake fan) supplies air to the combustion means. Flame current detecting means (FRB) is set at a certain detection position and detects a flame current value included in the flame which is generated by the combustion means. Determination means (control device) determines a distribution where the flame current value that is detected is included for the flame current detecting means. Control means (control device), when the flame current value is not included in a distribution, which is set as normal values, outputs a control command of increasing or decreasing at least one of the supply of the air by the air supply means and the supply of fuel based on a determination result by the determination means.Type: ApplicationFiled: November 9, 2010Publication date: May 10, 2012Applicant: TAKAGI INDUSTRIAL CO., LTD.Inventors: Akihito Yamashita, Kazushi Iwama, Yuichi Mochizuki, Katsumi Naitoh
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Patent number: 7322532Abstract: A hot-water supply apparatus is an apparatus which has a primary heat exchanger absorbing sensible heat of combustion exhaust and a secondary heat exchanger absorbing latent heat of the combustion exhaust, and improves a freezing prevention function of the hot-water supply apparatus at a cold period. Further, this apparatus has a temperature detection means (temperature sensors) which detects a freezing prevention temperature, a combustion means (a burner group) which supplies combustion exhaust generated by combustion to the primary and secondary heat exchangers, an air supply means which supplies air to the combustion means, and a control means (a control unit) which makes the combustion means burn and drives the air supply means based on a detected temperature of the temperature detection means.Type: GrantFiled: February 14, 2005Date of Patent: January 29, 2008Assignee: Takagi Industrial Co., Ltd.Inventors: Akira Takada, Akihito Yamashita, Katsumi Naitoh
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Publication number: 20060026974Abstract: A hot-water supply apparatus is an apparatus which has a primary heat exchanger absorbing sensible heat of combustion exhaust and a secondary heat exchanger absorbing latent heat of the combustion exhaust, and improves a freezing prevention function of the hot-water supply apparatus at a cold period. Further, this apparatus has a temperature detection means (temperature sensors) which detects a freezing prevention temperature, a combustion means (a burner group) which supplies combustion exhaust generated by combustion to the primary and secondary heat exchangers, an air supply means which supplies air to the combustion means, and a control means (a control unit) which makes the combustion means burn and drives the air supply means based on a detected temperature of the temperature detection means.Type: ApplicationFiled: February 14, 2005Publication date: February 9, 2006Applicant: Takagi Industrial Co., Ltd.Inventors: Akira Takada, Akihito Yamashita, Katsumi Naitoh
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Patent number: 4575916Abstract: A method for making a buckle mechanism starting with a cylindrical metal blank by forming a circumferential cut-out on the blank, fixing the blank onto a flexible cable, forming a flattened longitudinal groove on opposite sides of the blank by pressing on both sides, and inserting the thus-formed connector into a buckle base.Type: GrantFiled: February 15, 1985Date of Patent: March 18, 1986Assignee: NSK Warner K.K.Inventors: Katsumi Naitoh, Tadaaki Shimamura
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Patent number: 4428545Abstract: A manual locking mechanism is provided for the non-locking or emergency locking retractor used in safety belt systems for vehicle. This manual system may be operable either electrically or mechanically, and is distinguishably colored and placed in a position to which the driver on the seat is easily accessible.Type: GrantFiled: April 8, 1981Date of Patent: January 31, 1984Assignee: NSK-Warner K.K.Inventor: Katsumi Naitoh
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Patent number: 4391421Abstract: A retractor for seat belt with an alleviating device has a webbing take-up shaft biased in webbing take-up direction and rotatably supported on a base, a gear train comprising a first gear member mounted on the take-up shaft for rotation therewith and a second gear member mesh-engaging the first gear member and rotatably provided on the base, a disc with a cam portion provided for rotation with the second gear member by friction engagement therebetween, and a latch member movable between an engaged position in which it is engaged with a portion integral with the gear train and prevents the rotation of the take-up shaft in the webbing take-up direction and a disengaged position in which it is not engaged with the portion integral with the gear train.Type: GrantFiled: March 11, 1981Date of Patent: July 5, 1983Assignee: NSK-Warner K. K.Inventors: Katsumi Naitoh, Hideo Yanagihara
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Patent number: 4349164Abstract: A retractor comprises reel shaft means rotatably supported between the two opposed side plate portions of a base member, a gear fixed to one end of the reel shaft means and meshing with another gear given a take-up force by a take-up spring and rotatably supported on that side plate portion which is adjacent to the one end of the reel shaft means, take-up force locking means for diminishing or nulling the take-up force of the take-up spring applied to webbing during the wearing of a belt, the take-up force locking means being mounted on that side plate portion which is adjacent to the one end of the reel shaft means, a webbing-sensitive emergency locking mechanism mounted on that side plate portion which is adjacent to the other end of the reel shaft means, and a vehicle-sensitive emergency locking mechanism mounted on the inner surface of that side plate portion which is adjacent to the other end of the reel shaft means.Type: GrantFiled: September 25, 1980Date of Patent: September 14, 1982Assignee: NSK-Warner K. K.Inventor: Katsumi Naitoh
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Patent number: 4295684Abstract: A safety belt wind-up device includes a rotatable belt wind-up shaft, wind-up force lock device capable of assuming interlocked and uninterlocked positions with the wind-up shaft including a first member rotatively driven by the wind-up shaft when the wind-up force lock device is in the interlocked position, a first cam rotating together with the first member, a second member rotatively driven by the first member engaging the second member, and a second cam rotating together with the second member, and a device for bringing the lock device into the interlocked and uninterlocked positions depending upon engagement and disengagement of a buckle of the device. The device permits a safety belt to be drawn out of the device to a length required for a user's action from the equipped position and completely delete the wind-up force acting upon the belt at the equipped position, whereby the user is not subjected to a belt wind-up force.Type: GrantFiled: November 14, 1979Date of Patent: October 20, 1981Assignees: NSK-Warner K.K., Nissan Motor Co., Ltd.Inventor: Katsumi Naitoh
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Patent number: 4261531Abstract: A seat belt retractor comprising belt take-up shaft means supported by the base member, belt take-up force locking means capable of assuming an interlocked position in which it is interlocked with the take-up shaft means and a non-interlocked position in which it is not interlocked with the take-up shaft means, and sensing means for bringing the take-up force locking means to the interlocked position and the non-interlocked position, respectively, in accordance with the wearing and removal of the seat belt of a belt wearer.The take-up force locking means in the interlocked position prevents the take-up of the belt so far drawn out but permits draw out and take-up of the belt in a predetermined range beyond the amount so far drawn out.Type: GrantFiled: May 9, 1979Date of Patent: April 14, 1981Assignee: NSK-Warner K. K.Inventor: Katsumi Naitoh