Patents by Inventor Yasuharu Yamada
Yasuharu Yamada 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: 20240126193Abstract: An image forming apparatus includes a first rotatable member, a second rotatable member, an air nozzle, and a pipe. The pipe includes a portion provided in a range overlapping with the first rotatable member and making one reciprocation or more in a case that when a direction crossing a feeding direction of a recording material fed in a nip is a widthwise direction of the first rotatable member, the pipe is viewed in a direction perpendicular to the widthwise direction.Type: ApplicationFiled: September 5, 2023Publication date: April 18, 2024Inventors: YASUHARU TORATANI, SHUTARO SAITO, KEISUKE YOSHIDA, YUYA YAMADA, TAKU ASHIDA, ASUNA FUKAMACHI, SHOHEI TSUZAKI, YUSUKE YAMAGUCHI, HIROSHI MIYAMOTO
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Publication number: 20240126194Abstract: An image forming apparatus includes a first rotatable member, a second rotatable member, an air nozzle, and a pipe. The pipe includes a portion extending along a widthwise direction of the first rotatable member perpendicular to a recording material feeding direction.Type: ApplicationFiled: September 12, 2023Publication date: April 18, 2024Inventors: SHUTARO SAITO, KEISUKE YOSHIDA, YUYA YAMADA, TAKU ASHIDA, ASUNA FUKAMACHI, YUSUKE YAMAGUCHI, SHOHEI TSUZAKI, HIROSHI MIYAMOTO, YASUHARU TORATANI
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Publication number: 20240126197Abstract: An image forming apparatus includes a reception unit to receive a job, heating and pressing rotary members to form a nip portion, and a spraying member having a nozzle and a cylinder. The nozzle discharges air to the heating rotary member and a recording material. During a period after the reception unit receives the job and before a leading edge of a first sheet of the recording material reaches the nip portion, the spraying member performs a spraying operation of spraying air in an amount greater than or equal to a predetermined amount. The air that the spraying member sprays on the first sheet of the recording material during the job is higher in temperature than the air that the spraying member sprays during the period after the reception unit receives the job and before the leading edge of the first sheet of the recording material reaches the nip portion.Type: ApplicationFiled: October 12, 2023Publication date: April 18, 2024Inventors: SHOHEI TSUZAKI, ASUNA FUKAMACHI, YUSUKE YAMAGUCHI, HIROSHI MIYAMOTO, YASUHARU TORATANI, KEISUKE YOSHIDA, SHUTARO SAITO, YUYA YAMADA, TAKU ASHIDA
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Publication number: 20220413268Abstract: A zoom lens includes, in order from an object side, a first lens group G1 having a positive focal length, a second lens group G2 having a negative focal length, a third lens group G3 including an aperture stop S and having a positive focal length, a fourth lens group G4 having a negative focal length, and a rear side lens group G5. The first lens group includes a negative lens and a positive lens disposed in order from a most object side. The first lens group and the third lens group are fixed in power varying from a wide angle end to a telephoto end. The second lens group moves from the object side to an image side in the power varying. The zoom lens satisfies following conditional expressions (1) and (2). 2.1?F1/Fw?3.0 ??(1) ?1.2?F3/F2??0.Type: ApplicationFiled: March 31, 2022Publication date: December 29, 2022Applicant: OM DIGITAL SOLUTIONS CORPORATIONInventors: Toyoki KON, Yasuharu YAMADA
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Publication number: 20220389268Abstract: The present invention addresses the problem of providing an ink-jet application type composition for wiring-line protection which can form layers that are excellent in terms of pattern retentivity and moisture resistance at high temperatures, have satisfactory adhesiveness to the circuits or metal wiring lines of the semiconductor device over a long period, and are less apt to suffer ion migration. The ink-jet application type composition for wiring-line protection comprises (A) one or more cationic photopolymerizable compounds including an alicyclic epoxy compound, (B) a cationic photopolymerization initiator, and (C) a silane coupling agent, wherein the silane coupling agent is contained in an amount of 1-50 parts by mass per 100 parts by mass of the cationic photopolymerizable compounds. The ink-jet application type composition for wiring-line protection has a viscosity, as measured with an E-type viscometer at 25° C. and 20 rpm, of 5-50 mPa·s.Type: ApplicationFiled: October 27, 2020Publication date: December 8, 2022Inventors: Yasuharu YAMADA, Takumi SHIRAISHI, Yusuke TOMITA, Yugo YAMAMOTO, Takuo SHIKAMA
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Publication number: 20220186066Abstract: The present invention addresses the problem of providing a protection member which is for a semiconductor and has excellent pattern retention at high temperatures and moisture resistance and has good adhesion to a semiconductor circuit, etc. for long period of time. The protection member which is for a semiconductor and solves said problem, includes a cured article of an organic polymerizable compound having a functional group containing an oxygen atom and/or a nitrogen atom. The absolute value of the difference between the linear expansion coefficient at 150° C. of the cured article and the linear expansion coefficient at 25° C. of the cured article is 55 or less.Type: ApplicationFiled: March 26, 2020Publication date: June 16, 2022Inventors: Yasuharu YAMADA, Takumi SHIRAISHI, Yusuke TOMITA, Yugo YAMAMOTO
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Patent number: 10955644Abstract: A zoom optical system includes a front-side lens unit, an intermediate lens unit, and a rear-side lens unit. The front-side lens unit includes a first front unit and a second front unit, and a distance between the first front unit and the second front unit is wider at a telephoto end than at a wide angle end. The intermediate lens unit includes a first intermediate unit and a second intermediate unit, and a distance between the first intermediate unit and the second intermediate unit is narrower at the telephoto end than at the wide angle end. A distance between the second intermediate unit and a lens unit adjacent to the second intermediate unit varies. The second intermediate unit moves at the time of focusing, and the following conditional expressions (1) and (2) are satisfied: 0.9?LTLT/LTLW?1.17??(1) 4.2?KMBT?20.0??(2).Type: GrantFiled: December 23, 2018Date of Patent: March 23, 2021Assignee: OLYMPUS CORPORATIONInventors: Kazuteru Kawamura, Yasuharu Yamada, Toyoki Kon, Yuki Kubota
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Patent number: 10838186Abstract: An information acquisition apparatus includes an illuminating section, an image forming optical system, and an image pickup element. The image forming optical system includes an incidence-side lens unit having a positive refractive power, an aperture section, and an emergence-side lens unit having a positive refractive power. The incidence-side lens unit and the emergence-side lens unit include a plurality of positive lenses and at least one negative lens, and the following conditional expressions (1) to (9) are satisfied: ?6<?d<?0.8??(1) ?0.5<TL/|ENPL|<3.0??(2) ?1.5<TL/|EXPL|<0.5??(3) 0.001<|?Cd|/Sim1/2<0.05??(4) 0.04<|?dF|/Sim1/2<0.28??(5) 3.5<|?CF|/|?Cd|<38.0??(6) 0<|?SAd|/|?CF|<0.27??(7) 0<|?SAC|/|?CF|<0.16??(8) 0<|?SAF|/|?CF|<1.1??(9).Type: GrantFiled: January 28, 2019Date of Patent: November 17, 2020Assignee: OLYMPUS CORPORATIONInventors: Kento Hara, Tadashi Hirata, Yasuharu Yamada
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Patent number: 10831037Abstract: A zoom lens includes in order from an object side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, and a first lens component in the predetermined lens unit moves perpendicularly with respect to an optical axis and is fixed at the time of zooming, and a second lens component is disposed, leaving an air space on an image side of the first lens component, and a sign of a refractive power of the second lens component differs from a sign of a refractive power of the first lens component, and the following conditional expression (1) is satisfied. 3.Type: GrantFiled: October 2, 2018Date of Patent: November 10, 2020Assignee: OLYMPUS CORPORATIONInventors: Kazuteru Kawamura, Yasuharu Yamada
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Patent number: 10690895Abstract: A zoom lens includes in order from an object side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, a fourth lens unit having a negative refractive power, and a fifth lens unit having a positive refractive power. The first lens unit includes a positive lens, and the second lens unit includes a positive lens, and the following conditional expressions (1), (2), (3), and (4) are satisfied: ?0.015?Tp2G_min_p?0.015??(1), 70.3??d1G_max_p??(2), 1.76?nd2G_max_p?2.3??(3), and 0.3?|f2/f3|?0.9??(4).Type: GrantFiled: September 27, 2017Date of Patent: June 23, 2020Assignee: OLYMPUS CORPORATIONInventors: Toyoki Kon, Kazuteru Kawamura, Yasuharu Yamada, Tetsuya Yanai, Daichi Murakami
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Publication number: 20190243115Abstract: An information acquisition apparatus includes an illuminating section, an image forming optical system, and an image pickup element. The image forming optical system includes an incidence-side lens unit having a positive refractive power, an aperture section, and an emergence-side lens unit having a positive refractive power. The incidence-side lens unit and the emergence-side lens unit include a plurality of positive lenses and at least one negative lens, and the following conditional expressions (1) to (9) are satisfied: ?6<?d<?0.8??(1) ?0.5<TL/|ENPL|<3.0??(2) ?1.5<TL/|EXPL|<0.5??(3) 0.001<|?Cd|/Sim1/2<0.05??(4) 0.04<|?dF|/Sim1/2<0.28??(5) 3.5<|?CF|/|?Cd|<38.0??(6) 0<|?SAd|/|?CF|<0.27??(7) 0<|?SAC|/|?CF|<0.16??(8) 0<|?SAF|/|?CF|<1.1??(9).Type: ApplicationFiled: January 28, 2019Publication date: August 8, 2019Applicant: OLYMPUS CORPORATIONInventors: Kento HARA, Tadashi HIRATA, Yasuharu YAMADA
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Publication number: 20190196157Abstract: A zoom optical system includes a front-side lens unit, an intermediate lens unit, and a rear-side lens unit. The front-side lens unit includes a first front unit and a second front unit, and a distance between the first front unit and the second front unit is wider at a telephoto end than at a wide angle end. The intermediate lens unit includes a first intermediate unit and a second intermediate unit, and a distance between the first intermediate unit and the second intermediate unit is narrower at the telephoto end than at the wide angle end. A distance between the second intermediate unit and a lens unit adjacent to the second intermediate unit varies. The second intermediate unit moves at the time of focusing, and the following conditional expressions (1) and (2) are satisfied: 0.9?LTLT/LTLW?1.17??(1) 4.2?KMBT?20.0??(2).Type: ApplicationFiled: December 23, 2018Publication date: June 27, 2019Applicant: OLYMPUS CORPORATIONInventors: Kazuteru KAWAMURA, Yasuharu YAMADA, Toyoki KON, Yuki KUBOTA
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Publication number: 20190033615Abstract: A zoom lens includes in order from an object side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, and a first lens component in the predetermined lens unit moves perpendicularly with respect to an optical axis and is fixed at the time of zooming, and a second lens component is disposed, leaving an air space on an image side of the first lens component, and a sign of a refractive power of the second lens component differs from a sign of a refractive power of the first lens component, and the following conditional expression (1) is satisfied. 3.Type: ApplicationFiled: October 2, 2018Publication date: January 31, 2019Inventors: Kazuteru KAWAMURA, Yasuharu YAMADA
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Patent number: 10133085Abstract: A zoom lens includes in order from an object side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, and a first lens component in the predetermined lens unit moves perpendicularly with respect to an optical axis and is fixed at the time of zooming, and a second lens component is disposed, leaving an air space on an image side of the first lens component, and a sign of a refractive power of the second lens component differs from a sign of a refractive power of the first lens component, and the following conditional expression (1) is satisfied. 3.Type: GrantFiled: March 31, 2016Date of Patent: November 20, 2018Assignee: OLYMPUS CORPORATIONInventors: Kazuteru Kawamura, Yasuharu Yamada
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Publication number: 20180017770Abstract: A zoom lens includes in order from an object side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, a fourth lens unit having a negative refractive power, and a fifth lens unit having a positive refractive power. The first lens unit includes a positive lens, and the second lens unit includes a positive lens, and the following conditional expressions (1), (2), (3), and (4) are satisfied: ?0.015?Tp2G_min_p?0.015??(1), 70.3??d1G_max_p??(2), 1.76?nd2G_max_p?2.3??(3), and 0.3?|f2/f3|?0.9??(4).Type: ApplicationFiled: September 27, 2017Publication date: January 18, 2018Applicant: OLYMPUS CORPORATIONInventors: Toyoki KON, Kazuteru KAWAMURA, Yasuharu YAMADA, Tetsuya YANAI, Daichi MURAKAMI
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Patent number: 9678319Abstract: In a zoom lens of a fixed total length, at the time of changing the magnification from the wide-angle end toward the telephoto end, the first lens group is anchored while the second lens group is moved, and the third and fourth lens groups are moved so as to be located at the object side of the telephoto end relative to the wide-angle end, such that: the interval between the second and third lens groups is decreased at the telephoto end relative to the wide-angle end; the interval between the third and fourth lens groups is increased at the telephoto end relative to the wide-angle end; and the interval between the fourth and fifth lens groups is increased at the telephoto end relative to the wide-angle end, and at the time of focusing a near object point from a remote object point, the second lens group is moved.Type: GrantFiled: June 23, 2015Date of Patent: June 13, 2017Assignee: OLYMPUS CORPORATIONInventors: Hirohiko Kimata, Yasuharu Yamada, Kenichi Nagasawa, Hiroshi Kodama, Toshio Takahashi, Kento Kokubu
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Publication number: 20160349531Abstract: A zoom lens includes in order from an object side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, and a first lens component in the predetermined lens unit moves perpendicularly with respect to an optical axis and is fixed at the time of zooming, and a second lens component is disposed, leaving an air space on an image side of the first lens component, and a sign of a refractive power of the second lens component differs from a sign of a refractive power of the first lens component, and the following conditional expression (1) is satisfied. 3.Type: ApplicationFiled: March 31, 2016Publication date: December 1, 2016Inventors: Kazuteru Kawamura, Yasuharu Yamada
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Patent number: 9507131Abstract: A teleconverter according to the present invention includes a master lens apparatus side mount portion, an image pickup apparatus side mount portion, and a converter lens section having a negative refractive power as a whole. The converter lens section includes in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, and a third lens unit having a positive refractive power. The second lens unit is a lens unit in which, three lenses are cemented, and which includes in order from the object side to the image side, a first lens having a negative refractive power, a second lens having a positive refractive power, and a third lens having a negative refractive power. The teleconverter satisfies predetermined conditional expressions.Type: GrantFiled: February 10, 2015Date of Patent: November 29, 2016Assignee: Olympus CorporationInventors: Yasuji Ogata, Yasuharu Yamada
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Patent number: 9321017Abstract: A novel gas separation membrane having excellent gas permeability and gas separation performance, particularly carbon dioxide (CO2) permeability and excellent separation performance of carbon dioxide to methane (CH4) is provided. Moreover, a novel gas separation membrane having excellent heat resistance, chemical resistance and strength etc. is preferably provided. A gas separation membrane comprising a resin comprising a branched polybenzoxazole has excellent gas permeability and gas separation performance, particularly excellent carbon dioxide (CO2) permeability and excellent separation performance of carbon dioxide to methane (CH4). The resin comprising a branched polybenzoxazole preferably has a cross-linked structure. Furthermore, the resin comprising a branched polybenzoxazole is preferably a hybrid with silica.Type: GrantFiled: January 22, 2013Date of Patent: April 26, 2016Assignee: NAGOYA INDUSTRIAL SCIENCE RESEARCH INSTITUTEInventors: Yasuharu Yamada, Mikako Takenaka, Tomoyuki Suzuki, Masako Miki
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Publication number: 20150370053Abstract: In a zoom lens of a fixed total length, at the time of changing the magnification from the wide-angle end toward the telephoto end, the first lens group is anchored while the second lens group is moved, and the third and fourth lens groups are moved so as to be located at the object side of the telephoto end relative to the wide-angle end, such that: the interval between the second and third lens groups is decreased at the telephoto end relative to the wide-angle end; the interval between the third and fourth lens groups is increased at the telephoto end relative to the wide-angle end; and the interval between the fourth and fifth lens groups is increased at the telephoto end relative to the wide-angle end, and at the time of focusing a near object point from a remote object point, the second lens group is moved.Type: ApplicationFiled: June 23, 2015Publication date: December 24, 2015Inventors: Hirohiko Kimata, Yasuharu Yamada, Kenichi Nagasawa, Hiroshi Kodama, Toshio Takahashi, Kento Kokubu