Patents by Inventor Koji Hisaka
Koji Hisaka 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).
-
Patent number: 9422500Abstract: The invention provides a grease composition capable of smoothly operating the lubricated parts even under wide-ranging temperature conditions, and at the same time, exhibiting excellent noise reducing effect on the lubricated parts. The grease composition containing a base oil and a thickener is provided, wherein the base oil includes at least one first base oil selected from the group consisting of poly-?-olefins and ethylene-?-olefin oligomers and at least one second base oil selected from the group consisting of polybutene, polyisobutylene, polymethacrylate, and styrene based copolymers, with the first base oil being contained in an amount of 65 mass % or more and the second base oil being contained in an amount of 1 mass % or more and less than 35 mass % based on the total mass of the base oil, the base oil having a kinematic viscosity of 350 to 1400 mm2/s at 40° C., the first base oil having a kinematic viscosity of 300 to 1200 mm2/s at 40° C.Type: GrantFiled: February 15, 2010Date of Patent: August 23, 2016Assignees: KYODO YUSHI CO., LTD., DENSO CORPORATIONInventors: Kyosuke Ikuma, Mitsuhiro Kakizaki, Koji Sakakibara, Shozo Ikejima, Suehiro Okazaki, Koji Hisaka
-
Publication number: 20110294705Abstract: The invention provides a grease composition capable of smoothly operating the lubricated parts even under wide-ranging temperature conditions, and at the same time, exhibiting excellent noise reducing effect on, the lubricated parts. The grease composition containing a base oil and a thickener is provided, wherein the base oil includes at least one first base oil selected from the group consisting of poly-?-olefins and ethylene-?-olefin oligomers and at least one second base oil selected from the group consisting of polybutene, polyisobutylene, polymethacrylate, and styrene based copolymers, with the first base oil being contained in an amount of 65 mass % or more and the second base oil being contained in an amount of 1 mass % or more and less than 35 mass % based on the total mass of the base oil, the base oil having a kinematic viscosity of 350 to 1400 mm2/s at 40° C., the first base oil having a kinematic viscosity of 300 to 1200 rnm2/s at 40° C.Type: ApplicationFiled: February 15, 2010Publication date: December 1, 2011Applicants: DENSO CORPORATION, KYODO YUSHI CO., LTD.Inventors: Kyosuke Ikuma, Mitsuhiro Kakizaki, Koji Sakakibara, Shozo Ikejima, Suehiro Okazaki, Koji Hisaka
-
Patent number: 7473078Abstract: A centrifugal blower includes a scroll casing defining a scroll passage having a suction port and a discharge port. A fan member is disposed rotatably in the scroll casing, and the fan member is rotated by a motor. The fan member includes a plate member having at least a first circular plate portion and a second circular plate portion which are arranged in an axial direction to have a step shape in cross section, and a plurality of blades which are arranged at an outer peripheral portion of the plate member and extend in the axial direction. Furthermore, the plate member is arranged to change a flow direction of air drawn by the fan member from the suction port in an axial direction, to a radial outside. Because the plate member is arranged in the step shape in cross section, fan noise due to disturbed air flow can be restricted.Type: GrantFiled: October 11, 2005Date of Patent: January 6, 2009Assignee: Denso CorporationInventors: Koji Hisaka, Kunie Matsuoka
-
Patent number: 7300078Abstract: A pipe joint clamp for connecting piping members includes a circular holding portion in which flange portions of the piping members are clamped, and multiple flexion-shaped hinge portions, which protrude from the holding portion toward a diametrically outer side thereof. The hinge portions are resiliently deformable to accommodate a variation of outer diameters of the flange portions. Thus, a protrusion amount of the each hinge portion can be reduced. Accordingly, the space occupied by the clamp at the joint part of the piping members is decreased.Type: GrantFiled: July 26, 2005Date of Patent: November 27, 2007Assignee: DENSO CorporationInventors: Tomohiro Yamamoto, Koji Hisaka
-
Publication number: 20060083610Abstract: A centrifugal blower includes a scroll casing defining a scroll passage having a suction port and a discharge port. A fan member is disposed rotatably in the scroll casing, and the fan member is rotated by a motor. The fan member includes a plate member having at least a first circular plate portion and a second circular plate portion which are arranged in an axial direction to have a step shape in cross section, and a plurality of blades which are arranged at an outer peripheral portion of the plate member and extend in the axial direction. Furthermore, the plate member is arranged to change a flow direction of air drawn by the fan member from the suction port in an axial direction, to a radial outside. Because the plate member is arranged in the step shape in cross section, fan noise due to disturbed air flow can be restricted.Type: ApplicationFiled: October 11, 2005Publication date: April 20, 2006Applicant: DENSO CorporationInventors: Koji Hisaka, Kunie Matsuoka
-
Publication number: 20060022467Abstract: A pipe joint clamp for connecting piping members includes a circular holding portion in which flange portions of the piping members are clamped, and multiple flexion-shaped hinge portions, which protrude from the holding portion toward a diametrically outer side thereof. The hinge portions are resiliently deformable to accommodate a variation of outer diameters of the flange portions. Thus, a protrusion amount of the each hinge portion can be reduced. Accordingly, the space occupied by the clamp at the joint part of the piping members is decreased.Type: ApplicationFiled: July 26, 2005Publication date: February 2, 2006Applicant: DENSO CorporationInventors: Tomohiro Yamamoto, Koji Hisaka