Patents by Inventor Kazutoshi Hori
Kazutoshi Hori 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: 20240084415Abstract: This non-oriented electrical steel sheet includes a base material having a chemical composition including Si: 3.7 to 4.8%, wherein a recrystallization rate is less than 100% in terms of an area fraction, the following Formula (i) and Formula (ii) are satisfied, and the tensile strength is more than 700 MPa. 4.3?Si+sol. Al+0.5×Mn?4.9??(i) (B50(0°)+2×B50(45°)+B50(90°))/4?1.Type: ApplicationFiled: March 31, 2022Publication date: March 14, 2024Applicant: NIPPON STEEL CORPORATIONInventors: Hiroyoshi YASHIKI, Yoshiaki NATORI, Kazutoshi TAKEDA, Ichiro TANAKA, Yoshihiro ARITA, Hiroki HORI, Wataru OHASHI
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Patent number: 7156473Abstract: An elastic track shoe is provided wherein loosening of bolts is prevented by use of a rigid core bar and the thickness of an elastic body subjected to a load can be increased irrespective of grousers. To this end, the core bar is integrally formed by casting, forging or precutting, a ground engaging side of the core bar is covered with the elastic body, and a portion of the core bar defined by projection of a ground engaging face of the elastic body is divided into two parts.Type: GrantFiled: December 9, 2002Date of Patent: January 2, 2007Assignee: Komatsu Ltd.Inventors: Kazutoshi Hori, Hiroaki Watanabe
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Patent number: 7014279Abstract: The present invention is an elastic flat tread which can prevent an elastic solid from cracking even if the vehicle runs on a protruding object during traveling. For this purpose, the elastic flat tread is provided with any core (1, 11, 115) of a core (1, 11) attached to a link (6) and a core (115) attached to a metal plate (9A) which is attached to a link (8), and end portions (1a, 1b; 11a, 11h; 115a, 115b) in a longitudinal direction of the aforesaid any core (1, 11, 115) are bent toward the side not in contact with the around.Type: GrantFiled: January 7, 2003Date of Patent: March 21, 2006Assignee: Komatsu LimitedInventors: Hiroaki Watanabe, Kazutoshi Hori, Teiji Yamamoto, Tomihiro Tagawa, Kenji Taira
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Patent number: 7004270Abstract: A suspension apparatus of a multi-axle vehicle capable of realizing high traveling stability is provided. For this purpose, the suspension apparatus forms a quadric link structure (31) by a vehicle body (9), a front link (21) with an upper end portion being connected to the vehicle body with a pin and a lower end portion being in a vicinity of a front axle, a rear link (22) with an upper end portion being connected to the vehicle body with a pin and a lower end portion located in a vicinity of a rear axle, and a connecting link (1) for connecting portions in vicinities of respective lower end portions of the front and rear links, and a side length at a side of the connecting link is made shorter than a side length at a vehicle body side.Type: GrantFiled: October 30, 2003Date of Patent: February 28, 2006Assignee: Komatsu Ltd.Inventors: Kazutoshi Hori, Yasunari Suzuki, Takeo Ueda, Toshiyuki Hirata
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Patent number: 6984006Abstract: The present invention is an elastic flat tread which can prevent an elastic solid from cracking even if the vehicle runs on a protruding object during traveling. For this purpose, the elastic flat tread is provided with any core (1, 11, 115) of a core (1, 11) attached to a link (6) and a core (115) attached to a metal plate (9A) which is attached to a link (8), and end portions (1a, 1b; 11a, 11h; 115a, 115b) in a longitudinal direction of the aforesaid any core (1, 11, 115) are bent toward the side not in contact with the ground.Type: GrantFiled: January 7, 2003Date of Patent: January 10, 2006Assignee: Komatsu LimitedInventors: Hiroaki Wantanabe, Kazutoshi Hori, Teiji Yamamoto, Tomihiro Tagawa, Kenji Taira
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Patent number: 6932442Abstract: An elastic-bodied crawler, in which damages, such as local wear, coming-off of driven projections and the like in use, are prevented from being brought about, and frictional resistance is decreased at engaging portions to provide for durability, comprises a body with a reinforcement layer of reinforcement cables embedded therein circumferentially, driven projections provided in a predetermined pitch on an inner peripheral surface of the body, lug portions formed on an outer surface of the body, and reinforcement members (driven projection reinforcement cables) embedded to bridge the driven projections and the body.Type: GrantFiled: July 22, 2002Date of Patent: August 23, 2005Assignee: Komatsu Ltd.Inventor: Kazutoshi Hori
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Publication number: 20050104448Abstract: An elastic track shoe is provided wherein loosening of bolts is prevented by use of a rigid core bar and the thickness of an elastic body subjected to a load can be increased irrespective of grousers. To this end, the core bar is integrally formed by casting, forging or precutting, a ground engaging side of the core bar is covered with the elastic body, and a portion of the core bar defined by projection of a ground engaging face of the elastic body is divided into two parts.Type: ApplicationFiled: December 9, 2002Publication date: May 19, 2005Applicant: Komatsu, Ltd.Inventors: Kazutoshi Hori, Hiroaki Watanabe
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Patent number: 6832820Abstract: It is possible to achieve a light structure by making a part of a core bar thin and to prevent an elastic body from strain deforming by a smooth rib reinforcing portion from which an edge portion of the core bar does not protrude. It is possible to achieve a strength even when piercing a hole in the core bar and to prevent the elastic body from being cut by an edge portion of a hole. Accordingly, in a core bar (10) of an elastic body track shoe fastened to each pair of joint links of a crawler by bolts, recess portions (1a, 1b) formed in a substantially inverse-trapezoidal shape or recess portions (10a, 10b) formed in a substantially inverse-trapezoidal shape toward front end portions are formed in non-grounded surface sides of right and left wing portions in a direction of a crawler width. A recess portion (1e) formed in a substantially inverse-trapezoidal shape or a through hole (1f) may be formed in a center portion.Type: GrantFiled: October 9, 2003Date of Patent: December 21, 2004Assignee: Komatsu Ltd.Inventors: Hiroaki Watanabe, Kazutoshi Hori, Kazuo Yasojima
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Publication number: 20040090034Abstract: A suspension apparatus of a multi-axle vehicle capable of realizing high traveling stability is provided. For this purpose, the suspension apparatus forms a quadric link structure (31) by a vehicle body (9), a front link (21) with an upper end portion being connected to the vehicle body with a pin and a lower end portion being in a vicinity of a front axle, a rear link (22) with an upper end portion being connected to the vehicle body with a pin and a lower end portion located in a vicinity of a rear axle, and a connecting link (1) for connecting portions in vicinities of respective lower end portions of the front and rear links, and a side length at a side of the connecting link is made shorter than a side length at a vehicle body side.Type: ApplicationFiled: October 30, 2003Publication date: May 13, 2004Applicant: KOMATSU LTD.Inventors: Kazutoshi Hori, Yasunari Suzuki, Takeo Ueda, Toshiyuki Hirata
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Publication number: 20040075340Abstract: It is possible to achieve a light structure by making a part of a core bar thin and to prevent an elastic body from strain deforming by a smooth rib reinforcing portion from which an edge portion of the core bar does not protrude. It is possible to secure a strength even when piercing a hole in the core bar and to prevent the elastic body from being cut by an edge portion of a hole. Accordingly, in a core bar (10) of an elastic body track shoe fastened to each pair of joint links of a crawler by bolts, recess portions (1a, 1b) formed in a substantially inverse-trapezoidal shape or recess portions (10a, 10b) formed in a substantially inverse-trapezoidal shape toward front end portions are formed in non-grounded surface sides of right and left wing portions in a direction of a crawler width. A recess portion (1e) formed in a substantially inverse-trapezoidal shape or a through hole (1f) may be formed in a center portion.Type: ApplicationFiled: October 9, 2003Publication date: April 22, 2004Applicant: KOMATSU LTD.Inventors: Hiroaki Watanabe, Kazutoshi Hori, Kazuo Yasojima
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Patent number: 6709077Abstract: It is possible to achieve a light structure by making a part of a core bar thin and to prevent an elastic body from strain deforming by a smooth rib reinforcing portion from which an edge portion of the core bar does not protrude. It is possible to secure a strength even when piercing a hole in the core bar and to prevent the elastic body from being cut by an edge portion of a hole. Accordingly, in a core bar (10) of an elastic body track shoe fastened to each pair of joint links of a crawler by bolts, recess portions (1a, 1b) formed in a substantially inverse-trapezoidal shape or recess portions (10a, 10b) formed in a substantially inverse-trapezoidal shape toward front end portions are formed in non-grounded surface sides of right and left wing portions in a direction of a crawler width. A recess portion (1e) formed in a substantially inverse-trapezoidal shape or a through hole (1f) may be formed in a center portion.Type: GrantFiled: September 28, 2001Date of Patent: March 23, 2004Assignee: Komatsu Ltd.Inventors: Hiroaki Watanabe, Kazutoshi Hori, Kazuo Yasojima
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Patent number: 6601664Abstract: The present invention is a crawler device for a crawler type vehicle, which lowers the vehicle height, decreases the vehicle width, and exhibits superior stability during operation. For this purpose, in a crawler type vehicle having, on right and left sides of either one of front or rear portion, or both of the front and rear portions of a vehicle body, crawler devices each having a sprocket, an idler disposed on a truck frame, and a crawler belt passed through the sprocket and the idler, the crawler device can include a front end link coupled to a forward part of the truck frame by a pin at a lower end portion thereof and to the side of said vehicle body by a pin at the upper end portion thereof, and can include a rear end link coupled to a rearward part of the truck frame by a pin at the lower end portion thereof and to the side of the vehicle body at a position behind the front end link by a pin at the upper end portion thereof.Type: GrantFiled: June 21, 2001Date of Patent: August 5, 2003Assignee: Komatsu Ltd.Inventors: Hikosaburo Hiraki, Haruhiro Tsubota, Kazutoshi Hori
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Publication number: 20030107268Abstract: The present invention is an elastic flat tread which can prevent an elastic solid from cracking even if the vehicle runs on a protruding object during traveling. For this purpose, the elastic flat tread is provided with any core (1, 11, 115) of a core (1, 11) attached to a link (6) and a core (115) attached to a metal plate (9A) which is attached to a link (8), and end portions (1a, 1b; 11a, 11h; 115a, 115b) in a longitudinal direction of the aforesaid any core (1, 11, 115) are bent toward the side not in contact with the ground.Type: ApplicationFiled: January 7, 2003Publication date: June 12, 2003Applicant: Komatsu LimitedInventors: Hiroaki Watanabe, Kazutoshi Hori, Teiji Yamamoto, Tomihiro Tagawa, Kenji Taira
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Publication number: 20030102715Abstract: The present invention is an elastic flat tread which can prevent an elastic solid from cracking even if the vehicle runs on a protruding object during traveling. For this purpose, the elastic flat tread is provided with any core (1, 11, 115) of a core (1, 11) attached to a link (6) and a core (115) attached to a metal plate (9A) which is attached to a link (8), and end portions (1a, 1b; 11a, 11h; 115a, 115b) in a longitudinal direction of the aforesaid any core (1, 11, 115) are bent toward the side not in contact with the around.Type: ApplicationFiled: January 7, 2003Publication date: June 5, 2003Applicant: Komatsu LimitedInventors: Hiroaki Watanabe, Kazutoshi Hori, Teiji Yamamoto, Tomihiro Tagawa, Kenji Taira
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Patent number: 6568769Abstract: The present invention is an elastic flat tread which can prevent an elastic solid from cracking even if the vehicle runs on a protruding object during traveling. For this purpose, the elastic flat tread is provided with any core (1, 11, 115) of a core (1, 11) attached to a link (6) and a core (115) attached to a metal plate (9A) which is attached to a link (8), and end portions (1a, 1b; 11a, 11h; 115a, 115b) in a longitudinal direction of the aforesaid any core (1, 11, 115) are bent toward the side not in contact with the ground.Type: GrantFiled: March 3, 2000Date of Patent: May 27, 2003Assignee: Komatsu Ltd.Inventors: Hiroaki Watanabe, Kazutoshi Hori, Teiji Yamamoto, Tomihiro Tagawa, Kenji Taira
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Patent number: 6533371Abstract: With the objective of providing an elastic crawler shoe capable of securing desired ground contact pressure on an icy road or a pressed snow road, thereby preventing a skid, a ground contact face of an elastic body which is bonded to a core bar so as to cover the core bar has grooves, and a central ground contact face in a longitudinal direction of the elastic crawler shoe is provided with stepped parts relative to end portions thereof so as to be protrusively stepped.Type: GrantFiled: December 6, 2000Date of Patent: March 18, 2003Assignee: Komatsu, Ltd.Inventors: Kazutoshi Hori, Hiroaki Watanabe
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Publication number: 20030034690Abstract: With the objective of providing an elastic crawler shoe capable of securing desired ground contact pressure on an icy road or a pressed snow road, thereby preventing a skid, a ground contact face of an elastic body which is bonded to a core bar so as to cover the core bar has grooves, and a central ground contact face in a longitudinal direction of the elastic crawler shoe is provided with stepped parts relative to end portions thereof so as to be protrusively stepped.Type: ApplicationFiled: December 6, 2000Publication date: February 20, 2003Inventors: Kazutoshi Hori, Hiroaki Watanabe
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Publication number: 20030019133Abstract: An elastic-bodied crawler, in which a ground pressure distribution is equalized and generation of local wear in use is prevented to provide for durability, and which is driven by drive power from driven projections provided on an inner peripheral surface of the crawler, comprises load propagating means embedded centrally of the crawler in a widthwise direction to extend over treads of rollers. The load propagating means causes pressing forces (ground pressure) of the rollers to act generally in the widthwise direction whereby a ground pressure distribution on a ground surface of the crawler is equalized, local wear in lug portions is eliminated to enhance durability of the crawler.Type: ApplicationFiled: July 22, 2002Publication date: January 30, 2003Inventor: Kazutoshi Hori
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Publication number: 20030015918Abstract: An elastic-bodied crawler, in which damages, such as local wear, coming-off of driven projections and the like in use, are prevented from being brought about, and frictional resistance is decreased at engaging portions to provide for durability, comprises a body with a reinforcement layer of reinforcement cables embedded therein circumferentially, driven projections provided in a predetermined pitch on an inner peripheral surface of the body, lug portions formed on an outer surface of the body, and reinforcement members (driven projection reinforcement cables) embedded to bridge the driven projections and the body.Type: ApplicationFiled: July 22, 2002Publication date: January 23, 2003Inventor: Kazutoshi Hori
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Patent number: 6474756Abstract: A rubber crawler belt having a pattern of a lug provided on an outer circumferential side of a rubber belt has a central lug portion provided to continuously extend around a center portion in a width direction of the outer circumference of the rubber belt, in a waveform, and a plurality of branch lug portions each having a predetermined width and provided from the central lug portion toward left and right end portions of the rubber belt to be away therefrom diagonally in a circumferential direction, and an interval between the branched lug portions adjacent to each other being the same as an interval between drive protrusions, in the circumferential direction of the rubber belt.Type: GrantFiled: April 10, 2001Date of Patent: November 5, 2002Assignee: Komatsu Ltd.Inventors: Kazutoshi Hori, Hiroaki Watanabe, Masatake Tamaru, Kenzo Kimoto