Patents by Inventor Nobuhiro Hosoi
Nobuhiro Hosoi 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: 20210309209Abstract: A control target for a control device (10) is a vehicle drive device (1) including a rotating electrical machine (MG), and the control device (10) includes: an actual rotational speed obtaining part (14) that obtains an actual rotational speed (Nm) which is an actual rotational speed of the rotating electrical machine (MG); an actual torque obtaining part (15) that obtains actual torque (Tm) which is actual torque of the rotating electrical machine (MG); and a determining part (16) that determines a state of the rotating electrical machine (MG). The determining part (16) determines that the state of the rotating electrical machine (MG) is a negative torque abnormality, when the actual torque (Tm) has a negative value smaller than a torque threshold value (THt) set based on a relationship between the actual rotational speed (Nm) and target torque (Tmt) of the rotating electrical machine (MG).Type: ApplicationFiled: August 22, 2019Publication date: October 7, 2021Applicant: AISIN AW CO., LTD.Inventors: Nobuhiro HOSOI, Daiki SUGIMOTO
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Publication number: 20210269032Abstract: A controller for a vehicle drive device includes an engagement control part controlling an engagement state of a first engagement device based on an engagement control instruction; a hydraulic pressure information obtaining part obtaining hydraulic pressure information indicating first hydraulic pressure supplied to the first engagement device; an acceleration information obtaining part obtaining acceleration information indicating vehicle acceleration; and a determining part determining a state of the first engagement device, and when an input rotational speed is greater than zero, a state of a transmission is a drive transmission state in which drive power is transmitted, the engagement control instruction is a disengagement instruction brining the first engagement device into a disengaged state, the first hydraulic pressure is greater than a first threshold value, and the acceleration has a negative value smaller than a second threshold value, the determining part determines the first engagement device staType: ApplicationFiled: August 22, 2019Publication date: September 2, 2021Applicant: AISIN AW CO., LTD.Inventors: Nobuhiro HOSOI, Daiki SUGIMOTO
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Patent number: 9787957Abstract: An image projection apparatus includes a light source configured to emit light with a luminance according to electric power; a color wheel configured to sequentially transmit the light through multiple color filters arranged along a circumferential direction; a light modulation element configured to form an image by modulating an intensity of the light transmitted through the color wheel according to an input signal representing input image data; and a selection controller configured to select, out of a first waveform indicating temporal change in electric power supplied to the light source in a first mode and a second waveform indicating temporal change in electric power supplied to the light source in a second mode, the second waveform when a luminance value of the input signal is equal to or less than a first threshold. A brightness of the image in the second mode is lower than that in the first mode.Type: GrantFiled: September 16, 2015Date of Patent: October 10, 2017Assignee: RICOH COMPANY, LTD.Inventors: Nobuhiro Hosoi, Takahiro Kado
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Publication number: 20160100141Abstract: An image projection apparatus includes a light source configured to emit light with a luminance according to electric power; a color wheel configured to sequentially transmit the light through multiple color filters arranged along a circumferential direction; a light modulation element configured to form an image by modulating an intensity of the light transmitted through the color wheel according to an input signal representing input image data; and a selection controller configured to select, out of a first waveform indicating temporal change in electric power supplied to the light source in a first mode and a second waveform indicating temporal change in electric power supplied to the light source in a second mode, the second waveform when a luminance value of the input signal is equal to or less than a first threshold. A brightness of the image in the second mode is lower than that in the first mode.Type: ApplicationFiled: September 16, 2015Publication date: April 7, 2016Inventors: Nobuhiro HOSOI, Takahiro Kado
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Patent number: 9229305Abstract: An image projection apparatus includes a light source configured to cause a light-emitting material to emit light by an electric discharge between a pair of electrodes; an image forming unit configured to form an image by modulating intensity of the light emitted from the light source; a receiving unit configured to receive a power-off input that triggers stopping power supply to the image projection apparatus; and an electric-power control unit configured to increase electric power supplied to the electrodes before stopping power supply to the image projection apparatus when the receiving unit receives the power-off input.Type: GrantFiled: September 19, 2013Date of Patent: January 5, 2016Assignee: RICOH COMPANY, LIMITEDInventors: Takahiro Kado, Nobuhiro Hosoi, Yoshio Kubo
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Publication number: 20140239735Abstract: In an example of a system, power is transferred from a transmission coil to a reception coil by electromagnetic induction. A detecting unit calculates a difference between a standard value and a measured value, detects presence of a metallic foreign object on the transmission coil based on the difference, and outputs a signal when the metallic foreign object is detected. The standard value is obtained by supplying electrical power to the transmission coil when a metallic foreign object is absent on the transmission coil. The measured value is obtained by supplying electrical power to the transmission coil. If PIN0 represents input power of the transmission coil, PL0 represents output power of the reception coil, Pc1 represents copper loss of the transmission coil, and Pc2, represents copper loss of the reception coil, the detecting unit uses a value expressed by (PIN0-PL0-Pc1-Pc2) as the standard value and the measured value.Type: ApplicationFiled: September 7, 2012Publication date: August 28, 2014Applicant: TECHNOVA INC.Inventors: Shigeru Abe, Tomio Yasuda, Akira Suzuki, Nobuhiro Hosoi
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Publication number: 20140104584Abstract: An image projection apparatus includes a light source configured to cause a light-emitting material to emit light by an electric discharge between a pair of electrodes; an image forming unit configured to form an image by modulating intensity of the light emitted from the light source; a receiving unit configured to receive a power-off input that triggers stopping power supply to the image projection apparatus; and an electric-power control unit configured to increase electric power supplied to the electrodes before stopping power supply to the image projection apparatus when the receiving unit receives the power-off input.Type: ApplicationFiled: September 19, 2013Publication date: April 17, 2014Inventors: Takahiro KADO, Nobuhiro HOSOI, Yoshio KUBO
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Patent number: 8649090Abstract: A rear-projection screen for an ultra short throw projector includes a diffusing member to diffuse incident light having a specific angular range (AR) corresponding to a hotspot area generated on the rear-projection screen, and to transmit incident light having an angular range other than the specific angular range (AR). The diffusing member is provided at an area of the rear-projection screen where light having smaller incidence angle with respect to the rear-projection screen strikes the rear-projection screen.Type: GrantFiled: February 11, 2013Date of Patent: February 11, 2014Assignee: Ricoh Company, Ltd.Inventor: Nobuhiro Hosoi
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Publication number: 20130215503Abstract: A rear-projection screen for an ultra short throw projector includes a diffusing member to diffuse incident light having a specific angular range (AR) corresponding to a hotspot area generated on the rear-projection screen, and to transmit incident light having an angular range other than the specific angular range (AR). The diffusing member is provided at an area of the rear-projection screen where light having smaller incidence angle with respect to the rear-projection screen strikes the rear-projection screen.Type: ApplicationFiled: February 11, 2013Publication date: August 22, 2013Inventor: Nobuhiro HOSOI
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Patent number: 6893373Abstract: A transmission for a vehicle includes a main transmission (M) and a differential gear mechanism (20). The main transmission has at least two rotating elements (11, 12; 13, 14) each set to a different gear ratio, and the differential gear mechanism has at least three elements (21, 22, 23). There are provided first input means (C-1, C-2) which selectively inputs an input rotation to two rotating elements of the main transmission, and second input means (1, 2, C-3; 1, 2, 4) which connects the two rotating elements to two elements (21, 22) of the differential gear mechanism and inputs the input rotation to the other at least one element (23). Since an intermediate gear ratio with respect to an individual gear ratio is generated by two rotating elements at a time of simultaneously transmitting power to two rotating elements, it is possible to increase the number of shift speeds.Type: GrantFiled: March 5, 2002Date of Patent: May 17, 2005Assignee: Aisin Aw Co., Ltd.Inventors: Mutsumi Kawamoto, Yoshimi Ishihara, Yoshinori Miyaishi, Mitsugi Yamashita, Nobuhiro Hosoi
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Publication number: 20030148847Abstract: A transmission for a vehicle mainly includes a main transmission (M) and a differential gear mechanism (20). The main transmission has at least two rotating elements (11, 12; 13, 14) each set to a different gear ratio, and the differential gear mechanism has at least three elements (21, 22, 23). There are provided first input means (C-1, C-2) which selectively inputs an input rotation to two rotating elements of the main transmission, and second input means (1, 2, C-3; 1, 2, 4) which connects the two rotating elements to two elements (21, 22) of the differential gear mechanism and inputs the input rotation to the other at least one element (23).Type: ApplicationFiled: December 30, 2002Publication date: August 7, 2003Inventors: Mutsumi Kawamoto, Yoshimi Ishihara, Yoshinori Miyaishi, Mitsugi Yamashita, Nobuhiro Hosoi