Patents by Inventor Kiyotaka Ozaki
Kiyotaka Ozaki 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: 6843588Abstract: In a vehicular lamp system for an automotive vehicle, a first reflector (11201) equipped with a light source, a second reflector (11202) enabled to deflect a reflection direction thereof toward a vehicular turn direction independently of the first reflector, and a driving section (2) that operatively performs a deflection drive for the first and second reflectors are provided. A controller (3) controls the driving section(s) on the basis of a vehicular velocity detected by a vehicular velocity detector (6) and a steering angle detected by a vehicular steering angle detector (5) in such a manner that the second reflector is deflected toward the vehicular turn direction according to the detected steering angle when the detected vehicular velocity falls in an extremely low vehicular velocity range and that the first reflector is deflected toward the vehicular turn direction according to the steering angle when the detected vehicular velocity falls in a high vehicular velocity range.Type: GrantFiled: December 12, 2002Date of Patent: January 18, 2005Assignee: Nissan Motor Co., Ltd.Inventors: Kinya Iwamoto, Kiyotaka Ozaki, Kenjou Umezaki
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Publication number: 20030117808Abstract: In a vehicular lamp system for an automotive vehicle, a first reflector (11201) equipped with a light source, a second reflector (11202) enabled to deflect a reflection direction thereof toward a vehicular turn direction independently of the first reflector, and a driving section (2) that operatively performs a deflection drive for the first and second reflectors are provided. A controller (3) controls the driving section(s) on the basis of a vehicular velocity detected by a vehicular velocity detector (6) and a steering angle detected by a vehicular steering angle detector (5) in such a manner that the second reflector is deflected toward the vehicular turn direction according to the detected steering angle when the detected vehicular velocity falls in an extremely low vehicular velocity range and that the first reflector is deflected toward the vehicular turn direction according to the steering angle when the detected vehicular velocity falls in a high vehicular velocity range.Type: ApplicationFiled: December 12, 2002Publication date: June 26, 2003Applicant: NISSAN MOTOR CO., LTD.Inventors: Kinya Iwamoto, Kiyotaka Ozaki, Kenjou Umezaki
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Patent number: 6578992Abstract: In a vehicular lamp system having a displaceable light distribution section which radiates a light from a light source into a predetermined light distribution area and is enabled to displace its light distribution state toward a direction toward which a displacement angle thereof to an optical axis of the light source is formed, a drive section which drives the displaceable light distribution section to displace a light distribution state from the optical axis of the light source by displacement angle, a steering angle sensor which detects a steering angle of a vehicular steering wheel, and a controller which controls the drive section to displace light distribution section by the displacement angle in accordance with a detected value of the steering angle, a gain setting section is provided in the controller to set a gain prescribing the displacement angle of the displaceable light distributing section with respect to the detected value of the steering wheel to fall in a predetermined range such as to displaType: GrantFiled: March 19, 2001Date of Patent: June 17, 2003Assignee: Nissan Motor Co., Ltd.Inventors: Machiko Hiramatsu, Kiyotaka Ozaki, Kinya Iwamoto, Kenjo Umezaki
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Patent number: 6533443Abstract: At least one of diagonal cut lines CL1 and CL2, and horizontal cut lines CL3 and CL4 among a spatial distribution pattern PL of luminous intensity for a low beam can be changed.Type: GrantFiled: December 4, 2000Date of Patent: March 18, 2003Assignee: Ichikoh Industries Ltd.Inventors: Takayuki Kawamura, Kinya Iwamoto, Kiyotaka Ozaki, Kenjo Umezaki
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Patent number: 6478460Abstract: In a headlamp of an automobile, a reflector is divided to an upper reflector member positioned above an optical axis and a lower reflector member including the optical axis; the upper reflector is rotatable and provided with a reflection face for forming a diffusing luminous intensity distribution pattern; the lower reflector member is provided with a light source bulb, rotatable and provided with a reflection face for forming a reference luminous intensity distribution pattern. Therefore, the diffusing luminous intensity distribution pattern and the reference luminous intensity distribution pattern can independently or simultaneously be changed by rotating the upper reflector member and the lower reflector member independently or simultaneously. Accordingly, visibility is improved when an automobile is running on a curved road.Type: GrantFiled: December 4, 2000Date of Patent: November 12, 2002Assignees: Ichikoh Industries, Ltd., Nissan Motor Co., Ltd.Inventors: Takayuki Furuya, Kinya Iwamoto, Kiyotaka Ozaki, Kenjo Umezaki
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Publication number: 20020001195Abstract: In a vehicular lamp system for an automotive vehicle, a first reflector (11201) equipped with a light source, a second reflector (11202) enabled to deflect a reflection direction thereof toward a vehicular turn direction independently of the first reflector, and a driving section (2) that operatively performs a deflection drive for the first and second reflectors are provided. A controller (3) controls the driving section(s) on the basis of a vehicular velocity detected by a vehicular velocity detector (6) and a steering angle detected by a vehicular steering angle detector (5) in such a manner that the second reflector is deflected toward the vehicular turn direction according to the detected steering angle when the detected vehicular velocity falls in an extremely low vehicular velocity range and that the first reflector is deflected toward the vehicular turn direction according to the steering angle when the detected vehicular velocity falls in a high vehicular velocity range.Type: ApplicationFiled: May 18, 2001Publication date: January 3, 2002Applicant: NISSAN MOTOR CO., LTD.Inventors: Kinya Iwamoto, Kiyotaka Ozaki, Kenjou Umezaki
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Publication number: 20010038535Abstract: In a headlamp of an automobile, a reflector is divided to an upper reflector member positioned above an optical axis and a lower reflector member including the optical axis; the upper reflector is rotatable and provided with a reflection face for forming a diffusing luminous intensity distribution pattern; the lower reflector member is provided with a light source bulb, rotatable and provided with a reflection face for forming a reference luminous intensity distribution pattern. Therefore, the diffusing luminous intensity distribution pattern and the reference luminous intensity distribution pattern can independently or simultaneously be changed by rotating the upper reflector member and the lower reflector member independently or simultaneously. Accordingly, visibility is improved when an automobile is running on a curved road.Type: ApplicationFiled: December 4, 2000Publication date: November 8, 2001Applicant: ICHIKOH INDUSTRIES, LTDInventors: Takayuki Furuya, Kinya Iwamoto, Kiyotaka Ozaki, Kenjo Umezaki
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Publication number: 20010038537Abstract: At least one of diagonal cut lines CL1 and CL2, and horizontal cut lines CL3 and CL4 among a spatial distribution pattern PL of luminous intensity for a low beam can be changed.Type: ApplicationFiled: December 4, 2000Publication date: November 8, 2001Applicant: ICHIKOH INDUSTRIES, LTD.Inventors: Takayuki Kawamura, Kinya Iwamoto, Kiyotaka Ozaki, Kenjo Umezaki
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Publication number: 20010030870Abstract: In a vehicular lamp system having a displaceable light distribution section which radiates a light from a light source into a predetermined light distribution area and is enabled to displace its light distribution state toward a direction toward which a displacement angle thereof to an optical axis of the light source is formed, a drive section which drives the displaceable light distribution section to displace a light distribution state from the optical axis of the light source by displacement angle, a steering angle sensor which detects a steering angle of a vehicular steering wheel, and a controller which controls the drive section to displace light distribution section by the displacement angle in accordance with a detected value of the steering angle, a gain setting section is provided in the controller to set a gain prescribing the displacement angle of the displaceable light distributing section with respect to the detected value of the steering wheel to fall in a predetermined range such as to displaType: ApplicationFiled: March 19, 2001Publication date: October 18, 2001Applicant: NISSAN MOTOR CO., LTD.Inventors: Machiko Hiramatsu, Kiyotaka Ozaki, Kinya Iwamoto, Kenjo Umezaki
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Patent number: 5374877Abstract: A travel condition detecting section detects travel conditions of an electric motor car. According to the detected travel conditions, a required output calculating section calculates a required travel output. According to the calculated required travel output, a control commanding section determines travel outputs to be allocated to a plurality of motors coupled to driven wheels of the electric motor car, respectively in such a way that the total power consumption of the motors can be minimized, and further outputs control commands to the motors on the basis of the determined travel outputs allocated to the respective motors.Type: GrantFiled: July 26, 1993Date of Patent: December 20, 1994Assignee: Nissan Motor Co., Ltd.Inventors: Takashi Imaseki, Kiyotaka Ozaki, Takeshi Asou
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Patent number: 4773500Abstract: A four wheel drive system has an interaxle multiple disc friction clutch, an actuator for varying torque transmitted through the clutch to a front wheel drive shaft by varying a clutch pressure of the clutch, first and second sensors for sensing rotational speeds of the front wheel and rear wheel drive shafts, a third element for producing a third signal, and a control unit for controlling a driving torque distribution between the front and rear wheel drive shafts by sending a control signal to the actuator. The control means increases the torque transmitted through the clutch with increase in a speed difference between the front wheel and rear wheel drive shafts in accordance with one of characteristics selected in accordance with the third signal. The third element is designed to find a condition of the vehicle which can be controlled by a driver of the vehicle, and may take the form of an accelerator position sensor or a manually operated selector switch.Type: GrantFiled: September 12, 1986Date of Patent: September 27, 1988Assignee: Nissan Motor Co., Ltd.Inventors: Genpei Naito, Shuuji Torii, Kiyotaka Ozaki
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Patent number: 4757870Abstract: A four wheel drive system of a vehicle has a transfer clutch capable of varying clutch torque transmitted therethrough from an engine to front wheels. The clutch torque is controlled by a driving force distribution control unit in accordance with a front and rear wheel speed difference determined from signals from front and rear wheel speed sensors. Preferably, the control unit controls a distribution ratio of a front wheel driving force to a rear wheel driving force by controlling the clutch torque of the transfer clutch in such a manner that the distribution ratio decreases as the wheel speed difference increases when the wheel speed difference is positive, that is the front wheel speed is higher than the rear wheel speed, and that the distribution ratio increases as the absolute value of the wheel speed difference increases when the wheel speed difference is negative.Type: GrantFiled: February 18, 1986Date of Patent: July 19, 1988Assignee: Nissan Motor Co., Ltd.Inventors: Shuuji Torii, Yuji Kobari, Kiyotaka Ozaki
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Patent number: 4754834Abstract: A four wheel drive system of a vehicle has a transfer clutch capable of varying torque transmitted therethrough from an engine to front wheels. This torque is controlled by a driving force distribution control unit in response to sensor signals of vehicle cornering behavior sensor such as a lateral acceleration sensor, vehicle speed sensor, transmission gear position sensor, and accelerator position sensor. The control unit determines a driving force distribution ratio between the front wheel driving force and the rear wheel driving force in accordance with the sensed lateral acceleration in such a manner that the share of the driving force apportioned to the front wheels is decreased with increase of the lateral acceleration.Type: GrantFiled: January 21, 1986Date of Patent: July 5, 1988Assignee: Nissan Motor Co., Ltd.Inventors: Kiyotaka Ozaki, Shuuji Torii
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Patent number: 4741407Abstract: A limited-slip differential gear unit has end adjustable slip-limitation according to the operation mode of the adjustable suspension system. A control system for the limited-slip differential gear unit, which controls the slip-limitation is associated with a suspension control system to receive therefrom a suspension mode indicative signal to select one of a plurality of preset characteristics to derive a slip-limit control signal. The limited-slip differential gear unit includes a slip-limit adjusting mechanism which is responsive to the control signal for adjusting the slip-limitation to be generated by the limited-slip differential gear unit.Type: GrantFiled: November 6, 1986Date of Patent: May 3, 1988Assignee: Nissan Motor Company, LimitedInventors: Shuuji Torii, Kiyotaka Ozaki, Masatsugu Owada
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Patent number: 4718516Abstract: A four wheel drive unit is provided with a friction clutch interposed between an input shaft and a front wheel output shaft. The clutch is urged toward engagement with an increasing force as output torque of a rear wheel output shaft increases for thereby increasing engine power transmitted from the input shaft to front road wheels while urged toward disengagement with an increasing force as steering effort on a steering wheel increases for thereby reducing engine power transmitted from the input shaft to the front road wheels.Type: GrantFiled: November 14, 1985Date of Patent: January 12, 1988Assignee: Nissan Motor Co., Ltd.Inventors: Kiyotaka Ozaki, Shuuji Torii
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Patent number: 4679463Abstract: A limited slip differential comprises a pair of friction clutches interposed between a pair of pressure rings and a differential casing. The friction clutches are urged toward an engaged condition to reduce a differential action when a pinion mate shaft having a pair of cam portions rotate to urge the pressure rings to move away from each other. The friction clutches are also urged toward the engaged condition to reduce the differential action when supplied with fluid pressure from a hydraulic system. The hydraulic system controls supply and discharge of fluid pressure to and from said friction clutches in view of running conditions of the vehicle, such as for example accelerated conditions.Type: GrantFiled: August 29, 1985Date of Patent: July 14, 1987Assignee: Nissan Motor Co., Ltd.Inventors: Kiyotaka Ozaki, Shuuji Torii, Tomio Jindo, Takashi Imaseki
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Patent number: 4473753Abstract: A waste kinetic energy reclaiming system for an engine-driven vehicle includes a generator, and a variable torque-ratio coupling connecting the generator and the vehicle engine. The system also includes a clutch which selectably disconnects the coupling from the engine in response to whether or not braking of the vehicle is required so that the connection between the coupling and the engine is established only when braking is required.Type: GrantFiled: August 16, 1982Date of Patent: September 25, 1984Assignee: Nissan Motor Company, LimitedInventors: Hisashi Izumi, Shigeru Saito, Shuuji Torii, Kiyotaka Ozaki
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Patent number: 4357390Abstract: A hollow polyester fiber with excellent antistatic properties composed of a single polymeric component and having a hollow extending along the longitudinal axis thereof and in which the hollow ratio is at most 15%, which fiber contains (a) a polyoxyalkylene glycol substantially non-reactive with said polyester and (b) an ionic antistatic agent, dispersed through the fiber in an amount of at most 3% by weight based on the weight of the fiber, and wherein the polyoxyalkylene glycol (a) is predominantly dispersed in a core portion of the fiber in a high density. The fiber also has excellent tensile strength, resistance to fibrillation and dyeing properties.Type: GrantFiled: March 18, 1981Date of Patent: November 2, 1982Assignee: Teijin LimitedInventors: Kiyotaka Ozaki, Michikage Matsui
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Patent number: 4352705Abstract: A process for the preparation of leatherlike sheet materials which comprises: preparing hollow composite fibers, each composed of 32 to 72 alternately arranged segments of polyester or polyamide and polystyrene which are mutually adhered side-by-side and encompass a hollow space, and which extend along the longitudinal axis of the fiber to form a tubular body, the hollow composite fiber having a denier of 1 to 20, and each segment having a denier of 0.01 to 0.5; forming a fabric using thus prepared hollow composite fibers; removing the polystyrene segments with a solvent thereof from the hollow composite fibers; and applying an elastic polymer to the fabric. The resultant leatherlike sheet materials have fine touch, excellent repulsive elasticity and excellent wrinkle resistance similar to natural suede. The hollow ratio (ratio by volume of the hollow space to the sum of the volume of the polyester or polyamide segments, the polystyrene segments and the hollow space) is 2-15%.Type: GrantFiled: July 2, 1981Date of Patent: October 5, 1982Assignee: Teijin LimitedInventors: Kiyotaka Ozaki, Michikage Matsui, Norihiro Minemura
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Patent number: 4305309Abstract: Transfer unit includes a shift rod which is slidably supported at both ends in a transfer case and is adapted to cooperate with a shift fork to effect changeover between two wheel and four wheel drive conditions. The shift fork is supported by the shift rod so as to be movable in both shift directions and is resiliently retained in position on the shift rod.Type: GrantFiled: December 27, 1979Date of Patent: December 15, 1981Assignee: Nissan Motor Co., Ltd.Inventors: Takashi Ookubo, Yukiyoshi Sasabe, Kiyotaka Ozaki