Patents by Inventor Masahiro Egami
Masahiro Egami 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: 10543764Abstract: A vehicle seat (1) includes a seat cushion (2) and a seat back (3), in which the seat cushion (2) is given a stiffness distribution in a front-rear direction in such a way that a front part of the seat cushion is provided with a low stiffness region (PSc) which is more flexible than a rear part of the seat cushion being a high stiffness region (PHc).Type: GrantFiled: September 30, 2011Date of Patent: January 28, 2020Assignee: NISSAN MOTOR CO., LTD.Inventors: Rumiko Oshima, Shigeki Ishiwata, Masahiro Egami, Akinari Hirao, Atsushi Takamatsu, Takayoshi Nagano, Mitsuhito Ito
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Patent number: 9317055Abstract: Provided are a sequential impedance measurement device and a method for sequentially measuring impedance. While applying a signal having a power output fluctuation similar to that of normal operation, it is possible to carry out a quick measurement with relatively high precision and in a broad frequency range. Also, the device and the method can simultaneously determine phenomena which occur in different frequency ranges.Type: GrantFiled: October 24, 2012Date of Patent: April 19, 2016Assignee: HONDA MOTOR CO., LTD.Inventors: Masahiro Egami, Hiromichi Yoshida, Chihiro Wake
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Patent number: 8662579Abstract: A vehicle seat has a cushion pad, a breathable outer cover and an air permeable material layer. The cushion pad includes an air passage extending from an air introducing port disposed at the non-passenger facing surface to a branch passage formed along the passenger facing surface. The branch passage has at least one bypass air passage that extends in a vehicle-widthwise direction of the cushion pad. The breathable outer cover is disposed over the passenger facing surface of the cushion pad. The air permeable material layer is disposed between the cushion pad and the breathable outer cover. The air permeable material layer includes a plurality of vent outlets passing through in a thickness direction of the air permeable material layer. The vent outlets are arranged in at least one column that extends in a direction perpendicular to the vehicle-widthwise direction.Type: GrantFiled: March 1, 2012Date of Patent: March 4, 2014Assignee: Nissan Motor Co., Ltd.Inventors: Norimichi Yoshizawa, Masahiro Egami, Miharu Takahashi
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Publication number: 20130175838Abstract: A vehicle seat (1) includes a seat cushion (2) and a seat back (3), in which the seat cushion (2) is given a stiffness distribution in a front-rear direction in such a way that a front part of the seat cushion is provided with a low stiffness region (PSc) which is more flexible than a rear part of the seat cushion being a high stiffness region (PHc).Type: ApplicationFiled: September 30, 2011Publication date: July 11, 2013Applicant: NISSAN MOTOR CO., LTD.Inventors: Rumiko Oshima, Shigeki Ishiwata, Masahiro Egami, Akinari Hirao, Atsushi Takamatsu, Takayoshi Nagano, Mitsuhito Ito
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Publication number: 20120261974Abstract: A vehicle seat has a cushion pad, a breathable outer cover and an air permeable material layer. The cushion pad includes an air passage extending from an air introducing port disposed at the non-passenger facing surface to a branch passage formed along the passenger facing surface. The branch passage has at least one bypass air passage that extends in a vehicle-widthwise direction of the cushion pad. The breathable outer cover is disposed over the passenger facing surface of the cushion pad. The air permeable material layer is disposed between the cushion pad and the breathable outer cover. The air permeable material layer includes a plurality of vent outlets passing through in a thickness direction of the air permeable material layer. The vent outlets are arranged in at least one column that extends in a direction perpendicular to the vehicle-widthwise direction.Type: ApplicationFiled: March 1, 2012Publication date: October 18, 2012Applicant: Nissan Motor Co., Ltd.Inventors: Norimichi Yoshizawa, Masahiro Egami, Miharu Takahashi
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Patent number: 8036781Abstract: A driving assisting for calculating risk potential by considering a response delay by the driver and transmitting information related to the risk potential to the operator in a haptic manner. A controller is provided to estimate the response delay based on an operation performed by the operator. Based on the estimated response delay, the controller calculates a future position at which the risk potential is to be calculated. The longer the response delay, the remoter the future position is. The shorter the response delay, the nearer the future position is. The calculated risk potential at the future position may be transmitted to the operator via a pressing force from one of right and left side portions of a driver's seat occupied by the operator.Type: GrantFiled: July 6, 2010Date of Patent: October 11, 2011Assignee: Nissan Motor Co., Ltd.Inventor: Masahiro Egami
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Patent number: 7902693Abstract: A driver assisting system calculates a risk perceived (RP) by a driver from the environment, and a potential risk. At least one actuator is coupled to a driver controlled input device (or a driver's seat) to provide a first force to the driver controlled input device to stimulate the driver with a first form of tactile stimulus thereby to forward the calculated risk perceived (RP) to the driver, and to provide a second force to the driver controlled input device to stimulate driver with a second form of tactile stimulus thereby to forward the calculated potential risk to the driver.Type: GrantFiled: June 22, 2009Date of Patent: March 8, 2011Assignee: Nissan Motor Co., Ltd.Inventors: Shunsuke Hijikata, Masahiro Egami
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Patent number: 7864034Abstract: A system assists a driver occupying a seat within a vehicle traveling on a road. The system includes sensing apparatus that senses a plurality of different types of conditions regarding the vehicle. Information apparatus provides information regarding the different types of conditions to the driver by respective different types of haptic inputs.Type: GrantFiled: November 4, 2009Date of Patent: January 4, 2011Assignee: Nissan Motor Co., Ltd.Inventors: Shunsuke Hijikata, Masahiro Egami, Norio Kosaka
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Patent number: 7831314Abstract: A driving assisting for calculating risk potential by considering a response delay by the driver and transmitting information related to the risk potential to the operator in a haptic manner. A controller is provided to estimate the response delay based on an operation performed by the operator. Based on the estimated response delay, the controller calculates a future position at which the risk potential is to be calculated. The longer the response delay, the remoter the future position is. The shorter the response delay, the nearer the future position is. The calculated risk potential at the future position may be transmitted to the operator via a pressing force from one of right and left side portions of a driver's seat occupied by the operator.Type: GrantFiled: November 23, 2005Date of Patent: November 9, 2010Assignee: Nissan Motor Co., Ltd.Inventor: Masahiro Egami
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Publication number: 20100274438Abstract: A driving assisting for calculating risk potential by considering a response delay by the driver and transmitting information related to the risk potential to the operator in a haptic manner. A controller is provided to estimate the response delay based on an operation performed by the operator. Based on the estimated response delay, the controller calculates a future position at which the risk potential is to be calculated. The longer the response delay, the remoter the future position is. The shorter the response delay, the nearer the future position is. The calculated risk potential at the future position may be transmitted to the operator via a pressing force from one of right and left side portions of a driver's seat occupied by the operator.Type: ApplicationFiled: July 6, 2010Publication date: October 28, 2010Applicant: Nissan Motor Co., Ltd.Inventor: Masahiro EGAMI
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Publication number: 20100049407Abstract: A system assists a driver occupying a seat within a vehicle traveling on a road. The system includes sensing apparatus that senses a plurality of different types of conditions regarding the vehicle. Information apparatus provides information regarding the different types of conditions to the driver by respective different types of haptic inputs.Type: ApplicationFiled: November 4, 2009Publication date: February 25, 2010Applicant: NISSAN MOTOR CO., LTD.Inventors: Shunsuke HIJIKATA, Masahiro Egami, Norio Kosaka
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Patent number: 7636034Abstract: A system assists a driver occupying a seat within a vehicle traveling on a road. The system includes sensing apparatus that senses a plurality of different types of conditions regarding the vehicle. Information apparatus provides information regarding the different types of conditions to the driver by respective different types of haptic inputs.Type: GrantFiled: June 7, 2005Date of Patent: December 22, 2009Assignee: Nissan Motor Co., Ltd.Inventors: Shunsuke Hijikata, Masahiro Egami, Norio Kosaka
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Publication number: 20090259372Abstract: A driver assisting system calculates a risk perceived (RP) by a driver from the environment, and a potential risk. At least one actuator is coupled to a driver controlled input device (or a driver's seat) to provide a first force to the driver controlled input device to stimulate the driver with a first form of tactile stimulus thereby to forward the calculated risk perceived (RP) to the driver, and to provide a second force to the driver controlled input device to stimulate driver with a second form of tactile stimulus thereby to forward the calculated potential risk to the driver.Type: ApplicationFiled: June 22, 2009Publication date: October 15, 2009Applicant: Nissan Motor Co., Ltd.Inventors: Shunsuke HIJIKATA, Masahiro Egami
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Patent number: 7560826Abstract: A driving assist method and system for assisting a driver operating a vehicle. An obstacle is detected and information of a legal speed restriction on vehicle speeds for a road which the vehicle is traveling on, is obtained. A first type risk perceived by the driver from the detected obstacle is calculated, and a second type of risk is determined by comparing the detected vehicle speed and the legal speed restriction. The calculated first and second type of risk are translated into different first and second forms of tactile stimulus, respectively, and are applied to the driver via a single device to forward the calculated first and second type of risk to the driver. The single device is the driver's seat or the driver controlled device.Type: GrantFiled: November 18, 2004Date of Patent: July 14, 2009Assignee: Nissan Motor Co., Ltd.Inventors: Shunsuke Hijikata, Masahiro Egami
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Patent number: 7558672Abstract: A driving assisting system for conveying risk information to a driver of a vehicle. The system includes a detector configured to acquire data related to a driving condition of the vehicle and an object in the vicinity of the vehicle, and a data processor configured to calculate a collision risk potential of the vehicle to collide with the object based on the data related to the driving condition of the vehicle and the object. Information related to the collision risk potential to the driver of the vehicle via a visual signal and a haptic signal.Type: GrantFiled: June 1, 2005Date of Patent: July 7, 2009Assignee: Nissan Motor Co., Ltd.Inventors: Masahiro Egami, Shunsuke Hijikata
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Patent number: 7327234Abstract: A driving assistance system and method for providing driving condition information to a driver via a seat with a haptic signal. A set of state signals of the vehicle with respect to a lane on the road is generated. The set of state signals include at least a lateral position signal that indicates a lateral positional relationship of the vehicle with respect to the lane and a heading angle signal that indicates a heading angle of the vehicle with respect to the lane. A haptic signal is generated based on the set of state signals to convey information regarding the lateral positional relationship of the vehicle with respect to the lane and the heading angle of the vehicle with respect to the lane.Type: GrantFiled: February 2, 2005Date of Patent: February 5, 2008Assignee: Nissan Motor Co., Ltd.Inventors: Masahiro Egami, Shunsuke Hijikata
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Patent number: 7228212Abstract: A driving information system that conveys driving condition information to a driver of a vehicle via a haptic notification seat. A signal representing a driving condition, such as a lateral position of the vehicle, is generated. Two haptic signals are provided and regulated in specific ways to provide the driving condition to the driver: a first haptic input to the driver from a first portion of the seat, and a second haptic input to the driver from a second portion of the seat.Type: GrantFiled: February 9, 2005Date of Patent: June 5, 2007Assignee: Nissan Motor Co., Ltd.Inventors: Shunsuke Hijikata, Masahiro Egami
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Patent number: 7222009Abstract: A driving assist system for vehicle calculates risk potential from the traveling environment of vehicle surroundings, and calculates a reference speed Vt while the vehicle is traveling. Accelerator pedal reaction force control amount is then calculated based on the risk potential RP and the reference speed Vt. The accelerator pedal reaction force is controlled so as to generate the calculated reaction force control amount, and information relating to the risk potential RP and the reference speed Vt is conveyed to the driver through sense of touch.Type: GrantFiled: September 17, 2004Date of Patent: May 22, 2007Assignee: Nissan Motor Co., Ltd.Inventors: Shunsuke Hijikata, Masahiro Egami
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Patent number: 7124010Abstract: A vehicle driving assist system comprises a condition recognition device that detects a vehicle condition and a traveling environment around a subject vehicle; a reactive force application device that applies a reactive force, in conformance to the vehicle condition and the travelling environment around the subject vehicle, to an operation device; a condition change detection device that detects a condition change occurring around the subject vehicle; and a reactive force variation device that adjusts the reactive force applied by the reactive force application device in a period of time, when the condition change detection device detects that a condition around the subject vehicle has changed discontinuously.Type: GrantFiled: February 14, 2003Date of Patent: October 17, 2006Assignee: Nissan Motor Co., Ltd.Inventor: Masahiro Egami
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Patent number: 7076358Abstract: An accelerator pedal device includes: an accelerator pedal; a reaction force application device that applies a reaction force to the accelerator pedal; and a selection device that selects a characteristic between a first characteristic according to a running situation of a subject vehicle and a second characteristic specified regardless of the running situation of the subject vehicle. The first characteristic and the second characteristic each is a characteristic indicating a relationship between an amount of stepping upon of the accelerator pedal and the reaction force to be applied. The reaction force application device applies the reaction force to the accelerator pedal based upon the characteristic selected by the selection device.Type: GrantFiled: May 17, 2005Date of Patent: July 11, 2006Assignee: Nissan Motor Co., Ltd.Inventor: Masahiro Egami