Patents by Inventor Chikara Yamamoto
Chikara Yamamoto 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: 20180024357Abstract: There is provided a head-up display device that reflects and enlarges an image, which is displayed on an image display element, by a curved mirror, allows an observer to visually recognize the image as a virtual image, can change a virtual image display position, and is small. A head-up display device, which reflects and enlarges a displayed primary display image by a curved mirror and allows an observer to visually recognize the primary display image as a virtual image, includes a virtual-image-position change portion of changing a distance between the observer and the virtual image and a display-size change portion of changing the display size of the primary display image, and is adapted to satisfy the following conditional expression (1). 2.5<(Hf/Hn)/(Bf/Bn)<15.Type: ApplicationFiled: June 15, 2017Publication date: January 25, 2018Applicant: FUJIFILM CorporationInventor: Chikara YAMAMOTO
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Patent number: 9873375Abstract: A vehicle approach alert device includes: a memory memorizing a warning sound source data for emitting a warning sound from an external sound emitting unit and a canceling sound source data for emitting a canceling sound from an internal sound emitting unit. The canceling sound cancels the warning sound transmitted from the external sound emitting unit to inside of the vehicle. The vehicle approach alert device further includes: a control part configured to read the warning sound source data from the memory to cause the external sound emitting unit to emit the warning sound based on the warning sound source data, and to read the canceling sound source data from the memory to cause the internal sound emitting unit to emit the canceling sound based on the canceling sound source data to be synchronized with the warning sound.Type: GrantFiled: August 22, 2016Date of Patent: January 23, 2018Assignee: ANDEN CO., LTD.Inventors: Yukiko Matsubara, Hironari Tajimi, Chikara Yamamoto, Hiroshi Sakakibara, Osamu Tateyama
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Publication number: 20180007272Abstract: A distance measurement device includes an emission unit, a detection unit, a first reduction unit that reduces, based on a detection result of the detection unit, influence of variation of an optical axis of the image formation optical system on a subject image received as light by a light receiving section, a second reduction unit that reduces variation of an optical axis of the directional light with respect to the subject based on the detection result of the detection unit, and a control unit that, in the case of operating the first reduction unit and the second reduction unit at the same time, controls the first reduction unit and the second reduction unit to reduce variation of an irradiation position of the directional light in the subject image received as light by the light receiving section.Type: ApplicationFiled: September 15, 2017Publication date: January 4, 2018Inventors: Tomonori MASUDA, Masaaki ORIMOTO, Hiroshi TAMAYAMA, Chikara YAMAMOTO
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Publication number: 20180007275Abstract: A distance measurement device includes a detection unit, an optical path forming unit, a common reduction unit that reduces influence of variation of an optical axis of an image formation optical system, and reduces variation of an optical axis of the directional light, an auxiliary reduction unit that auxiliarily reduces at least one of influence of variation of the optical axis of the image formation optical system or variation of the optical axis of the directional light, and a control unit that, in a case of operating the common reduction unit and the auxiliary reduction unit at the same time, controls the common reduction unit and the auxiliary reduction unit to reduce variation of an irradiation position of the directional light in a subject image received as light by a light receiving section.Type: ApplicationFiled: September 15, 2017Publication date: January 4, 2018Inventors: Tomonori MASUDA, Masaaki ORIMOTO, Hiroshi TAMAYAMA, Chikara YAMAMOTO
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Publication number: 20180007273Abstract: A distance measurement device includes a detection unit, an optical path forming unit, a first reduction unit that reduces, based on a detection result of the detection unit, influence of variation of the optical axis of the image formation optical system, a second reduction unit that is disposed in a different part from the common optical path and reduces variation of the optical axis of the directional light based on the detection result of the detection unit, and a control unit that, in the case of operating the first reduction unit and the second reduction unit at the same time, controls the first reduction unit and the second reduction unit to reduce variation of an irradiation position of the directional light in the subject image received as light by the light receiving section.Type: ApplicationFiled: September 15, 2017Publication date: January 4, 2018Inventors: Tomonori MASUDA, Masaaki ORIMOTO, Hiroshi TAMAYAMA, Chikara YAMAMOTO
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Publication number: 20180007270Abstract: A distance measurement device includes a detection unit, an optical path forming unit, a first reduction unit, based on a detection result of the detection unit, influence of variation of the optical axis of the image formation optical system, a second reduction unit that is disposed in a different part from a common optical path and reduces variation of the optical axis of the directional light with respect to the subject based on the detection result of the detection unit, and a control unit that, in the case of operating the first reduction unit and the second reduction unit at the same time, controls the first reduction unit and the second reduction unit to reduce variation of an irradiation position of the directional light in the subject image received as light by the light receiving section.Type: ApplicationFiled: September 15, 2017Publication date: January 4, 2018Inventors: Tomonori MASUDA, Masaaki ORIMOTO, Hiroshi TAMAYAMA, Chikara YAMAMOTO
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Publication number: 20180007271Abstract: A distance measurement device includes an emission unit, a detection unit, a first reduction unit that reduces, based on a detection result of the detection unit, influence of variation of an optical axis of the image formation optical system on the subject image received as light by the light receiving section, a second reduction unit that reduces variation of an optical axis of the directional light with respect to the subject based on the detection result of the detection unit, and a control unit that, in the case of operating the first reduction unit and the second reduction unit at the same time, controls the first reduction unit and the second reduction unit to reduce variation of an irradiation position of the directional light in the subject image received as light by the light receiving section.Type: ApplicationFiled: September 15, 2017Publication date: January 4, 2018Inventors: Tomonori MASUDA, Masaaki ORIMOTO, Hiroshi TAMAYAMA, Chikara YAMAMOTO
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Patent number: 9783107Abstract: A vehicle approach alert device that outputs an approach report sound from a sounding body includes: a memory part in which data of the approach report sound is memorized; a signal generator that generates a voltage waveform signal of the approach report sound based on the data of the approach report sound; a calculator that calculates a temperature of the sounding body; and a correct part that corrects the approach report sound based on the temperature of the sounding body. The calculator acquires information about a temperature detected by a temperature sensor located at a position different from the sounding body in the vehicle, and estimates the temperature of the sounding body based on the temperature detected by the temperature sensor.Type: GrantFiled: October 20, 2016Date of Patent: October 10, 2017Assignees: Anden Co., Ltd., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hitoshi Sakamoto, Hironari Tajimi, Chikara Yamamoto, Tomonori Suzuki, Tadashi Matsui
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Patent number: 9753261Abstract: A projection lens consists essentially of a first lens group having positive refractive power and a second lens group having positive refractive power in this order from a magnification side. A surface closest to a reduction side in the first lens group is convex. The second lens group consists of two single lenses each having positive refractive power, and in each of which a surface having a smaller absolute value faces the reduction side. Further, the following conditional expressions (1) through (4) are satisfied: |R1b/R1f|?0.5??(1); |R2b/R2f|?0.6??(2); |?/f2|?0.3??(3) and d2/f2?0.4??(4).Type: GrantFiled: March 18, 2015Date of Patent: September 5, 2017Assignee: FUJIFILM CorporationInventor: Chikara Yamamoto
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Publication number: 20170224201Abstract: The number of lenses within an objective lens for endoscopes is only three. The objective lens for endoscopes includes, in order from the object side, a first lens which is a single lens having a negative refractive power and a concave surface toward the object side, an aperture stop, and a cemented lens. The cemented lens is formed by cementing one positive lens and one negative lens together. Conditional formulae related to the distance from the surface toward the object side of the first lens to the aperture stop and the Abbe's numbers of the positive lens and the negative lens that constitute the cemented lens are satisfied.Type: ApplicationFiled: December 27, 2016Publication date: August 10, 2017Applicant: FUJIFILM CorporationInventor: Chikara YAMAMOTO
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Patent number: 9694745Abstract: A vehicle approach alert device includes: a first output sound voltage waveform signal generator having a first output sound generator that generates a first signal corresponding to output sound data read out from a memory device, and a first sound volume variable device that controls a voltage level of the first signal; a second output sound voltage waveform signal generator having a second output sound generator that generates a second signal corresponding to the output sound data read out from the memory device, and a second sound volume variable device that controls a voltage level of the second signal; a mixer circuit that mixes the first signal and the second signal; and an amplifier that outputs a vehicle approach alert sound with flowing current, which corresponds to a voltage of a mixed signal, through a sound output body.Type: GrantFiled: May 16, 2013Date of Patent: July 4, 2017Assignee: ANDEN CO., LTD.Inventors: Haruyuki Tsuzuki, Chikara Yamamoto
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Publication number: 20170151907Abstract: A vehicle approach alert device that outputs an approach report sound from a sounding body includes: a memory part in which data of the approach report sound is memorized; a signal generator that generates a voltage waveform signal of the approach report sound based on the data of the approach report sound; a calculator that calculates a temperature of the sounding body; and a correct part that corrects the approach report sound based on the temperature of the sounding body. The calculator acquires information about a temperature detected by a temperature sensor located at a position different from the sounding body in the vehicle, and estimates the temperature of the sounding body based on the temperature detected by the temperature sensor.Type: ApplicationFiled: October 20, 2016Publication date: June 1, 2017Inventors: Hitoshi SAKAMOTO, Hironari TAJIMI, Chikara YAMAMOTO, Tomonori SUZUKI, Tadashi MATSUI
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Patent number: 9645382Abstract: An objective lens for an endoscope focuses from a farthest point object to a nearest point object by moving, along optical axis Z, at least one lens group excluding a most object-side lens group. The objective lens satisfies the formulae: 1.2?ft/fw, and 0.0<(fm?fw)/(ft?fw)?0.5, where ft is a focal length of an entire system when the objective lens has been focused on the nearest point object, fw is a focal length of the entire system when the objective lens has been focused on the farthest point object, and fm is a focal length of the entire system when the objective lens has been focused on the middle point object.Type: GrantFiled: July 3, 2014Date of Patent: May 9, 2017Assignee: FUJIFILM CorporationInventor: Chikara Yamamoto
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Publication number: 20170096099Abstract: A vehicle approach alert device includes: a memory memorizing a warning sound source data for emitting a warning sound from an external sound emitting unit and a canceling sound source data for emitting a canceling sound from an internal sound emitting unit. The canceling sound cancels the warning sound transmitted from the external sound emitting unit to inside of the vehicle. The vehicle approach alert device further includes: a control part configured to read the warning sound source data from the memory to cause the external sound emitting unit to emit the warning sound based on the warning sound source data, and to read the canceling sound source data from the memory to cause the internal sound emitting unit to emit the canceling sound based on the canceling sound source data to be synchronized with the warning sound.Type: ApplicationFiled: August 22, 2016Publication date: April 6, 2017Inventors: Yukiko MATSUBARA, Hironari TAJIMI, Chikara YAMAMOTO, Hiroshi SAKAKIBARA, Osamu TATEYAMA
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Patent number: 9348207Abstract: An illuminating optical system suppresses deterioration in utilization efficiency of illuminating light and generation of fluctuations in light emission without increasing apparatus size. The illuminating optical system includes a plurality of light sources of different types, a light combining optical system that combines light beams output from each of the light sources such that they converge at a single position, and a rod integrator that uniformizes the light intensity distributions of the light beams which are converged at the single position that enter a first end thereof and outputs the light beams, of which the light intensity distribution has been uniformized, from a second end thereof. The light combining optical system includes relay optical component sets corresponding to each of the light sources, and the relay optical component sets have relay magnification ratios different from each other.Type: GrantFiled: July 24, 2013Date of Patent: May 24, 2016Assignee: FUJIFILM CorporationInventor: Chikara Yamamoto
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Publication number: 20160139378Abstract: A zoom lens is equipped with: a first lens group, which is fixed when changing magnification, provided most toward the magnification side; and a second lens group having a positive refractive power, which moves when changing magnification, provided adjacent to the first lens group at the reduction side thereof. The first lens group is constituted essentially by, in order from the magnification side to the reduction side, a front group having a positive refractive power and a rear group having a negative refractive power. Focusing operations are performed by changing the distance between the front group and the rear group. Conditional Formula (1): ?0.3 5?flb/ft<0 related to the focal length flb of the rear group and the focal length ft of the entire lens system at the telephoto end is satisfied.Type: ApplicationFiled: November 12, 2015Publication date: May 19, 2016Applicant: FUJIFILM CORPORATIONInventor: Chikara YAMAMOTO
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Publication number: 20160082882Abstract: A vehicle approach alert device includes: a first output sound voltage waveform signal generator having a first output sound generator that generates a first signal corresponding to output sound data read out from a memory device, and a first sound volume variable device that controls a voltage level of the first signal; a second output sound voltage waveform signal generator having a second output sound generator that generates a second signal corresponding to the output sound data read out from the memory device, and a second sound volume variable device that controls a voltage level of the second signal; a mixer circuit that mixes the first signal and the second signal; and an amplifier that outputs a vehicle approach alert sound with flowing current, which corresponds to a voltage of a mixed signal, through a sound output body.Type: ApplicationFiled: May 16, 2013Publication date: March 24, 2016Inventors: Haruyuki TSUZUKI, Chikara YAMAMOTO
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Patent number: 9285564Abstract: A lens for projection substantially consists of a negative first lens with its concave surface facing a reduction side, a positive second lens with its concave surface facing the reduction side, a negative third lens with its concave surface facing a magnification side, a positive fourth lens with its convex surface facing the reduction side, a positive fifth lens and a positive sixth lens in this order from the magnification side. The reduction side is telecentric. The following conditional formulas (1) and (2) about refractive power P4 of a reduction-side surface of the second lens, refractive power P5 of a magnification-side surface of the third lens, and focal length f of an entire system are satisfied: ?3.0?1/(P4×f)??0.4??(1); and ?2.0?1/(P5×f)??0.2??(2).Type: GrantFiled: October 16, 2014Date of Patent: March 15, 2016Assignee: FUJIFILM CorporationInventor: Chikara Yamamoto
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Publication number: 20150268455Abstract: A projection lens consists essentially of a first lens group having positive refractive power and a second lens group having positive refractive power in this order from a magnification side. A surface closest to a reduction side in the first lens group is convex. The second lens group consists of two single lenses each having positive refractive power, and in each of which a surface having a smaller absolute value faces the reduction side. Further, the following conditional expressions (1) through (4) are satisfied: |R1b/R1f|?0.5 ??(1); |R2b/R2f|?0.6 ??(2); |?/f2|?0.3 ??(3) and d2/f2?0.4 ??(4).Type: ApplicationFiled: March 18, 2015Publication date: September 24, 2015Inventor: Chikara YAMAMOTO
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Patent number: 9045077Abstract: A vehicle approach warning apparatus for abnormality detection in various abnormal modes is provided. In the vehicle approach warning apparatus, a sound generator output from the microcomputer passes an AMP and HPF, and an output voltage corresponding to the sound generator output is applied to a speaker to emit vehicle approach sound. The vehicle approach warning apparatus includes a voltage sensor circuit and outputs a check usage output as the sound generator output at the abnormality detection. A single frequency output that is within a resonance frequency band of the speaker and that can be poorly reproduced by the speaker is used as the check usage output. The abnormality detection is performed based on whether an integration circuit voltage outputted from the voltage sensor circuit is within a voltage range being an abnormality determination threshold.Type: GrantFiled: July 4, 2012Date of Patent: June 2, 2015Assignees: ANDEN CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Haruyuki Tsuzuki, Chikara Yamamoto, Tomonori Suzuki