Patents by Inventor Daisuke Kuroda
Daisuke Kuroda 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: 8218247Abstract: Disclosed herein is a zoom lens formed by arranging a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a third lens group having a positive refractive power in order from an object side to an image side, wherein at a time of varying power from a wide-angle end to a telephoto end, the first lens group is moved and the second lens group is moved to the object side integrally with a diaphragm such that an air interval between the first lens group and the second lens group is decreased and such that an air interval between the second lens group and the third lens group is increased.Type: GrantFiled: November 13, 2009Date of Patent: July 10, 2012Assignee: Sony CorporationInventors: Daisuke Kuroda, Makoto Kanai, Takumi Matsui, Hiroki Yamano
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Patent number: 8009972Abstract: An imaging apparatus and imaging lens device comprises a light path folding optical system having a reflector that folds the optical axis incident perpendicular to the gravitational direction toward the gravitational direction. An imaging element converts an image formed by the light path folding optical system into an electrical signal. A drive unit moves a shake correction lens group including at least one lens in the direction perpendicular to a vertical optical axis, the vertical optical axis being folded toward the gravitational direction by the reflector, wherein the shake correction lens group is moved in the direction perpendicular to the vertical optical axis to move the image in the direction perpendicular to the vertical optical axis.Type: GrantFiled: August 27, 2010Date of Patent: August 30, 2011Assignee: Sony CorporationInventors: Daisuke Kuroda, Yoshito Iwasawa, Makoto Kanai
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Patent number: 7990623Abstract: An object is to reduce the effect of defocusing due to the movement of an image plane when a shifting lens group movable in a direction perpendicular to the optical axis for correcting hand jiggling is positionally deviated along the optical axis, thereby maintaining high optical performance at the time of correcting hand jiggling. A zoom lens 1 includes a plurality of lens groups with distances between the lens groups being changed for variable power. A final lens group L5 which is positioned most closely to an image side has a sub lens group GS (G8) having a positive refractive power and a sub lens group GR (G9) disposed adjacent to the sub lens group GS (G8) on the image side and having a positive refractive power. The sub lens group GS is shiftable in a direction perpendicular to the optical axis for correcting image blurs.Type: GrantFiled: February 24, 2006Date of Patent: August 2, 2011Assignee: Sony CorporationInventors: Takeshi Hatakeyama, Daisuke Kuroda, Motoyuki Otake, Yoshito Iwasawa
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Patent number: 7978420Abstract: A zoom lens includes: first, second and third lens groups having negative refracting power, positive refracting power and positive refracting power, respectively, disposed in the order from an object side. During zooming from a wide angle end to a telephoto end, the first lens group is moved and the second lens group is moved together with a stop toward the object such that an air space between the first and second lens groups decreases and an air space between the second and third lens groups increases. The second lens group includes positive and negative lenses aspherically shaped on at least a side thereof facing the object and having a convex or concave surface facing the object, the negative lens being positioned on the image side of the positive lens. The zoom lens is configured to satisfy the following Conditional Expressions (1) and (2) 0.7<R2f/R2r<2.0??(1) 1.0<|Sga/Sgs|<1.5??(2).Type: GrantFiled: November 10, 2009Date of Patent: July 12, 2011Assignee: Sony CorporationInventor: Daisuke Kuroda
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Patent number: 7957070Abstract: A zoom lens includes: first, second and third lens groups having negative refracting power, positive refracting power and positive refracting power, respectively, disposed in the order listed from an object side to an image side, wherein during zooming from a wide angle end to a telephoto end, the first lens group is moved and the second lens group is moved toward the object such that an air space between the first and second lens groups decreases and an air space between the second and third lens groups increases; and the first lens group is formed by first and second lenses, the first and second lenses being disposed in the order listed from the object side to the image side, and the zoom lens satisfying the following Conditional Expressions (1) and (2) nd12>2.0??(1) ?d12<21.6??(2).Type: GrantFiled: September 29, 2009Date of Patent: June 7, 2011Assignee: Sony CorporationInventors: Hiroki Yamano, Daisuke Kuroda, Makoto Kanai, Takumi Matsui
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Patent number: 7952811Abstract: Disclosed herein is a zoom lens formed by arranging a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a third lens group having a positive refractive power in order from an object side to an image side, wherein at a time of varying power from a wide-angle end to a telephoto end, the first lens group is moved, and the second lens group is moved to the object side such that an air interval between the first lens group and the second lens group is decreased and such that an air interval between the second lens group and the third lens group is increased.Type: GrantFiled: August 12, 2009Date of Patent: May 31, 2011Assignee: Sony CorporationInventors: Makoto Kanai, Daisuke Kuroda, Takumi Matsui, Hiroki Yamano
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Patent number: 7944635Abstract: A lens barrel includes a shooting optical system contained in a barrel and operable to lead a subject image to an image sensor, a back focus adjustment lens group constituting a part of the shooting optical system and operable to be fixed immovably after the position of the back focus adjustment lens group is adjusted in an optical axis direction of the shooting optical system, and a back focus adjustment mechanism operable to adjust the position of the back focus adjustment lens group in the optical axis direction.Type: GrantFiled: June 30, 2008Date of Patent: May 17, 2011Assignee: Sony CorporationInventor: Daisuke Kuroda
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Patent number: 7920327Abstract: An image capturing apparatus includes: at least one or more vertically movable lens groups among at least three or more lens groups, which constitute a zoom lens, movable in an optical axis direction, the vertically movable lens group being movable in a direction substantially perpendicular to the optical axis; a zoom lens group among the three or more lens groups, the zoom lens group being movable in the optical axis direction; and a correction mechanism that corrects a position of the optical axis based on the three or more lens groups by moving the vertically movable lens group in a wide-angle end state to a predetermined position in the substantially perpendicular direction. When the vertically movable lens group is moved for the purpose of anti-vibration at each zoom position in the substantially perpendicular direction, the apparatus is configured to satisfy the following Conditional Expression (1). 0.7<(Lw+Bw)/Bt<1.Type: GrantFiled: January 29, 2010Date of Patent: April 5, 2011Assignee: Sony CorporationInventors: Atsushi Ohata, Daisuke Kuroda, Masayuki Murata
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Patent number: 7880974Abstract: A zoom lens includes a negative first lens group, a positive second lens group, and a positive third lens group; wherein, when changing power from a wide-angle end state to a tele end state, the first lens group moves such that air space between the first lens group and the second lens group decreases, and air space between the second lens group and the third lens group increases, and the second lens group moves toward the object side; and wherein the first lens group includes a negative lens with both faces formed aspherically and the concave face facing the image side, and a positive meniscus lens with at least one face formed aspherically and the convex face facing the object side, satisfying 2.8<|f1/fw|<3.3 where f1 represents the focal length of the first lens group, and fw represents the entire focal length in the wide-angle end state.Type: GrantFiled: March 4, 2010Date of Patent: February 1, 2011Assignee: Sony CorporationInventors: Takumi Matsui, Makoto Kanai, Daisuke Kuroda, Hiroki Yamano
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Patent number: 7875128Abstract: A Ni-free stainless steel product excellent in workability and corrosion resistance and a method for manufacturing such stainless steel product. A ferritic stainless steel product containing 18 to 24% by mass of Cr and 0 to 4% by mass of Mo is brought into contact with an inert gas containing a nitrogen gas at 800 degrees C. or above to subject it to nitrogen absorption treatment so that the product is austenitized partially or wholly to obtain such nickel-free product.Type: GrantFiled: April 20, 2007Date of Patent: January 25, 2011Assignees: National Institute for Materials Science, Myodo Metal Co., Ltd.Inventors: Daisuke Kuroda, Shinichi Yanadori, Mitsuo Watanabe, Kazuma Miura
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Publication number: 20100322607Abstract: An imaging apparatus and imaging lens device comprises a light path folding optical system having a reflector that folds the optical axis incident perpendicular to the gravitational direction toward the gravitational direction. An imaging element converts an image formed by the light path folding optical system into an electrical signal. A drive unit moves a shake correction lens group including at least one lens in the direction perpendicular to a vertical optical axis, the vertical optical axis being folded toward the gravitational direction by the reflector, wherein the shake correction lens group is moved in the direction perpendicular to the vertical optical axis to move the image in the direction perpendicular to the vertical optical axis.Type: ApplicationFiled: August 27, 2010Publication date: December 23, 2010Applicant: Sony CorporationInventors: Daisuke Kuroda, Yoshito Iwasawa, Makoto Kanai
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Publication number: 20100265594Abstract: A zoom lens includes a negative first lens group, a positive second lens group, and a positive third lens group; wherein, when changing power from a wide-angle end state to a tele end state, the first lens group moves such that air space between the first lens group and the second lens group decreases, and air space between the second lens group and the third lens group increases, and the second lens group moves toward the object side; and wherein the first lens group includes a negative lens with both faces formed aspherically and the concave face facing the image side, and a positive meniscus lens with at least one face formed aspherically and the convex face facing the object side, satisfying 2.8<|f1/fw|<3.3 where f1 represents the focal length of the first lens group, and fw represents the entire focal length in the wide-angle end state.Type: ApplicationFiled: March 4, 2010Publication date: October 21, 2010Applicant: SONY CORPORATIONInventors: Takumi Matsui, Makoto Kanai, Daisuke Kuroda, Hiroki Yamano
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Patent number: 7812468Abstract: A control system for a vehicle has an engine control unit for an engine and a generator control unit for a power generator driven by the engine. The engine control unit calculates a permissive power generation torque, which is permitted to be used by the power generator, in accordance with a response delay of the engine. The generator control unit calculates a command power to be generated by the power generator so that a battery voltage variation and an engine speed variation are suppressed to be less than respective allowable variation limits, when a power difference is caused between a required power and a permissive power generated by the permissive torque.Type: GrantFiled: December 10, 2007Date of Patent: October 12, 2010Assignee: Denso CorporationInventors: Daisuke Kuroda, Naoyuki Kamiya
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Patent number: 7809256Abstract: The invention aims to achieve slim design by employing a light path folding optical system, add a hand-shake correction capability, and lower power consumption. An imaging lens device includes a light path folding optical system having a reflector that folds the optical axis incident perpendicular to the gravitational direction toward the gravitational direction, and an imaging element that converts an image formed by the light path folding optical system into an electrical signal. The imaging lens device also includes drive means that moves some of lens groups or one lens (hereinafter referred to as “shake correction lens group”) in the direction perpendicular to the optical axis folded toward the gravitational direction by the reflector (hereinafter referred to as “vertical optical axis”). The shake correction lens group is moved in the direction perpendicular to the vertical optical axis to move the image in the direction perpendicular to the vertical optical axis.Type: GrantFiled: July 24, 2006Date of Patent: October 5, 2010Assignee: Sony CorporationInventors: Daisuke Kuroda, Yoshito Iwasawa, Makoto Kanai
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Publication number: 20100246027Abstract: An image capturing apparatus includes: at least one or more vertically movable lens groups among at least three or more lens groups, which constitute a zoom lens, movable in an optical axis direction, the vertically movable lens group being movable in a direction substantially perpendicular to the optical axis; a zoom lens group among the three or more lens groups, the zoom lens group being movable in the optical axis direction; and a correction mechanism that corrects a position of the optical axis based on the three or more lens groups by moving the vertically movable lens group in a wide-angle end state to a predetermined position in the substantially perpendicular direction. When the vertically movable lens group is moved for the purpose of anti-vibration at each zoom position in the substantially perpendicular direction, the apparatus is configured to satisfy the following Conditional Expression (1). 0.7<(Lw+Bw)/Bt<1.Type: ApplicationFiled: January 29, 2010Publication date: September 30, 2010Applicant: Sony CorporationInventors: Atsushi Ohata, Daisuke Kuroda, Masayuki Murata
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Publication number: 20100241376Abstract: An ECU calculates an evaluation value decrease amount D(?) in response to a reduction of unevenness of lithium ion concentration caused by diffusion of lithium ions resulting from a lapse of one cycle time ?T, calculates an evaluation value increase amount D(+) in response to an increase of the unevenness of the lithium ion concentration caused by discharging during a lapse of one cycle time ?T, and calculates a present value D(N) of a battery deterioration evaluation value D due to high-rate discharging, as a previous value D(N?1)?evaluation value decrease amount D(?)+evaluation value increase amount D(+). If battery deterioration evaluation value D exceeds a predetermined target value E, the ECU sets a discharging power limit value WOUT that is a limit value of electric power to be discharged from a battery, to a value lower than a maximum value W(MAX).Type: ApplicationFiled: September 17, 2008Publication date: September 23, 2010Applicants: Toyota Jidosha Kabushiki Kaisha, Denso CorporationInventors: Yoshiaki Kikuchi, Teruo Ishishita, Yuji Nishi, Daisuke Kuroda
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Publication number: 20100204861Abstract: During use of a secondary battery, a concentration change ratio estimating unit estimates a ratio of change in electrolytic solution concentration based on a charging/discharging current. According to the estimated ratio of change, a concentration estimated value calculating unit sequentially calculates an electrolytic solution concentration estimated value during the use of the secondary battery. Based on the estimated electrolytic solution concentration estimated value, a determining unit determines whether or not the electrolytic solution concentration is within a normal range. When the electrolytic solution concentration is outside the normal range, a charging/discharging condition modifying unit modifies a charging/discharging condition of the secondary battery to bring the electrolytic solution concentration back to the normal range, thus avoiding a tendency of overcharge or a tendency of overdischarge.Type: ApplicationFiled: September 25, 2008Publication date: August 12, 2010Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATIONInventors: Keiji Kaita, Teruo Ishishita, Shinobu Okayama, Yuji Nishi, Daisuke Kuroda
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Publication number: 20100149657Abstract: A zoom lens includes: first, second and third lens groups having negative refracting power, positive refracting power and positive refracting power, respectively, disposed in the order from an object side. During zooming from a wide angle end to a telephoto end, the first lens group is moved and the second lens group is moved together with a stop toward the object such that an air space between the first and second lens groups decreases and an air space between the second and third lens groups increases. The second lens group includes positive and negative lenses aspherically shaped on at least a side thereof facing the object and having a convex or concave surface facing the object, the negative lens being positioned on the image side of the positive lens. The zoom lens is configured to satisfy the following Conditional Expressions (1) and (2) 0.7<R2f/R2r<2.0??(1) 1.0<|Sga/Sgs|<1.Type: ApplicationFiled: November 10, 2009Publication date: June 17, 2010Applicant: Sony CorporationInventor: Daisuke Kuroda
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Publication number: 20100128363Abstract: A zoom lens includes: first, second and third lens groups having negative refracting power, positive refracting power and positive refracting power, respectively, disposed in the order listed from an object side to an image side, wherein during zooming from a wide angle end to a telephoto end, the first lens group is moved and the second lens group is moved toward the object such that an air space between the first and second lens groups decreases and an air space between the second and third lens groups increases; and the first lens group is formed by first and second lenses, the first and second lenses being disposed in the order listed from the object side to the image side, and the zoom lens satisfying the following Conditional Expressions (1) and (2) nd12>2.0??(1) ?d12<21.6??(2).Type: ApplicationFiled: September 29, 2009Publication date: May 27, 2010Applicant: Sony CorporationInventors: Hiroki Yamano, Daisuke Kuroda, Makoto Kanai, Takumi Matsui
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Publication number: 20100123959Abstract: Disclosed herein is a zoom lens formed by arranging a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a third lens group having a positive refractive power in order from an object side to an image side, wherein at a time of varying power from a wide-angle end to a telephoto end, the first lens group is moved and the second lens group is moved to the object side integrally with a diaphragm such that an air interval between the first lens group and the second lens group is decreased and such that an air interval between the second lens group and the third lens group is increased.Type: ApplicationFiled: November 13, 2009Publication date: May 20, 2010Applicant: SONY CORPORATIONInventors: Daisuke Kuroda, Makoto Kanai, Takumi Matsui, Hiroki Yamano