Patents by Inventor Shinkichi Ikeda
Shinkichi Ikeda 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: 9519126Abstract: A zoom lens consists of a positive first lens group, a negative second lens group moved from the object side to the image plane side during zooming from the wide angle end to the telephoto end, a positive third lens group moved during zooming, and a positive fourth lens group, in order from the object side. The second and third lens groups each pass through a point where the imaging magnification of each corresponding lens group is ?1× at the same time during zooming from the wide angle end to the telephoto end. The fourth lens group includes, on the most object side, a vibration-proof lens group, composed of a negative lens, a positive meniscus lens with a convex surface on the object side, and a negative lens, in order from the object side, and either one of the negative lenses satisfies predetermined conditional expressions.Type: GrantFiled: May 4, 2015Date of Patent: December 13, 2016Assignee: FUJIFILM CorporationInventors: Shinkichi Ikeda, Toshihiro Aoi
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Publication number: 20160345159Abstract: The invention relates to a method for discovering a home agent serving a mobile node upon the mobile node changing its mobility management scheme in a packet-switched network and the implementation of such method in a mobile node or home agent. In order to propose a home agent discover scheme that maintains session continuity in a seamless manner upon a mobile node changing its mobility management scheme, a mobile node comprises information on its location prior to changing the mobility management scheme to one of the first signaling messages transmitted upon changing the mobility management scheme (home agent discovery message). The receiving node uses this information to identify the home agent serving the mobile node or to provide a hint to the home agent where the mobile node is registered in a response message to the mobile node.Type: ApplicationFiled: August 3, 2016Publication date: November 24, 2016Inventors: Kilian Weniger, Takashi Aramaki, Jun Hirano, Jens Bachmann, Shinkichi Ikeda
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Patent number: 9497176Abstract: Disclosed is a technique to enable a user equipment at a remote place to perform local IP access to a locally-accessible network with simpler procedure and such a configuration while achieving the efficiency of costs and facility. According to the technique, a network (LIA-PDN 161) capable of dealing with a local IP access by a user equipment (UE 101) is placed on a core network 141. When the UE establishes a PDN connection with the LIA-PDN, the UE simultaneously transmits information concerning the LIA domain network 111 as well, to which the UE wants a local IP access. On the basis of this information, the LIA-PDN establishes a PDN connection with the LIA domain network, and the LIA-PDN transfers a packet, whereby the UE can access the LIA domain network via these PDN connections.Type: GrantFiled: October 8, 2010Date of Patent: November 15, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Jun Hirano, Shinkichi Ikeda
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Patent number: 9439059Abstract: The invention relates to a method for discovering a home agent serving a mobile node upon the mobile node changing its mobility management scheme in a packet-switched network and the implementation of such method in a mobile node or home agent. In order to propose a home agent discover scheme that maintains session continuity in a seamless manner upon a mobile node changing its mobility management scheme, a mobile node comprises information on its location prior to changing the mobility management scheme to one of the first signaling messages transmitted upon changing the mobility management scheme (home agent discovery message). The receiving node uses this information to identify the home agent serving the mobile node or to provide a hint to the home agent where the mobile node is registered in a response message to the mobile node.Type: GrantFiled: January 4, 2016Date of Patent: September 6, 2016Assignee: Sun Patent TrustInventors: Kilian Weniger, Takashi Aramaki, Jun Hirano, Jens Bachmann, Shinkichi Ikeda
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Patent number: 9417439Abstract: A zoom lens consists of a positive first lens group fixed during zooming, a negative second lens group moved during zooming, a positive third lens group moved during zooming to correct an image plane variation due to the zooming, and a positive fourth lens group fixed during zooming and includes a stop on the most object side. The second lens group includes two or more positive lenses and one or more negative lenses. The zoom lens satisfies predetermined conditional expressions with respect to the second lens group.Type: GrantFiled: April 28, 2015Date of Patent: August 16, 2016Assignee: FUJIFILM CorporationInventors: Toshihiro Aoi, Shinkichi Ikeda
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Publication number: 20160127968Abstract: The present invention relates to an improved method for handover of a mobile node from E-UTRAN to UTRAN in a scenario where SMS is the only service of the mobile node. The improved handover method allows saving radio resources by establishing the signalling connection for SMS exchange in the target network, and avoiding the data connection in the target network, since it is not used. The MME takes the decision to establish or not the data connection in the target UTRAN, and accordingly instructs the SGSN and UE to set the corresponding PDP contexts for the data connection to a “preserved” state, so as to avoid the establishment of same. Embodiments further relate to improved SMS delivery for IDLE mode UEs that activate ISR so as to avoid the involvement of the MSC server. Instead, packet-switched domain nodes are to be involved only.Type: ApplicationFiled: January 14, 2016Publication date: May 5, 2016Inventors: Genadi Velev, Jens Bachmann, Shinkichi Ikeda
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Publication number: 20160119772Abstract: The invention relates to a method for discovering a home agent serving a mobile node upon the mobile node changing its mobility management scheme in a packet-switched network and the implementation of such method in a mobile node or home agent. In order to propose a home agent discover scheme that maintains session continuity in a seamless manner upon a mobile node changing its mobility management scheme, a mobile node comprises information on its location prior to changing the mobility management scheme to one of the first signaling messages transmitted upon changing the mobility management scheme (home agent discovery message). The receiving node uses this information to identify the home agent serving the mobile node or to provide a hint to the home agent where the mobile node is registered in a response message to the mobile node.Type: ApplicationFiled: January 4, 2016Publication date: April 28, 2016Inventors: Kilian Weniger, Takashi Aramaki, Jun Hirano, Jens Bachmann, Shinkichi Ikeda
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Publication number: 20160091697Abstract: A zoom lens consists of, in order from the object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, a fourth lens group having a negative refractive power, a fifth lens group having a positive refractive power, and a sixth lens group having a positive refractive power, wherein magnification change is effected by changing all distances between adjacent lens groups. The first lens group is fixed relative to the image plane during magnification change, and the second lens group is moved from the object side toward the image side during magnification change from the wide-angle end to the telephoto end. The sixth lens group includes a positive lens and a negative lens.Type: ApplicationFiled: September 25, 2015Publication date: March 31, 2016Inventors: Shinkichi IKEDA, Daiki KOMATSU, Michio CHO
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Publication number: 20160091698Abstract: A zoom lens consists of, in order from the object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, a fourth lens group having a negative refractive power, a fifth lens group having a positive refractive power, and a sixth lens group having a positive refractive power, wherein magnification change is effected by changing all distances between adjacent lens groups. The second lens group is moved from the object side toward the image side during magnification change from the wide-angle end to the telephoto end. The position of the third lens group at the telephoto end is nearer to the image side than the position of the third lens group at the wide-angle end.Type: ApplicationFiled: September 28, 2015Publication date: March 31, 2016Inventors: Shinkichi IKEDA, Daiki KOMATSU, Michio CHO
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Patent number: 9288658Abstract: The invention relates to a method for discovering a home agent serving a mobile node upon the mobile node changing its mobility management scheme in a packet-switched network and the implementation of such method in a mobile node or home agent. In order to propose a home agent discover scheme that maintains session continuity in a seamless manner upon a mobile node changing its mobility management scheme, a mobile node comprises information on its location prior to changing the mobility management scheme to one of the first signaling messages transmitted upon changing the mobility management scheme (home agent discovery message). The receiving node uses this information to identify the home agent serving the mobile node or to provide a hint to the home agent where the mobile node is registered in a response message to the mobile node.Type: GrantFiled: August 8, 2013Date of Patent: March 15, 2016Assignee: Panasonic Intellectual Property Corporation of AmericaInventors: Kilian Weniger, Takashi Aramaki, Jun Hirano, Jens Bachmann, Shinkichi Ikeda
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Patent number: 9261684Abstract: The zoom lens substantially consists of a positive first lens group fixed while changing magnification, a negative second lens group which moves from the object side to the image side while changing magnification, a positive third lens group which moves while changing magnification, and a positive fourth lens group which moves from the image side to the object side while changing magnification, and a positive fifth lens group fixed while changing magnification in this order from the object side. A floating system in which the third lens group and the fourth lens group move relative to each other while changing magnification is adopted. The image formation magnification rates of the combined lens group formed by the third lens group and the fourth lens group together and the second lens group simultaneously pass ?1× point while changing magnification from the wide angle end to the telephoto end.Type: GrantFiled: December 9, 2014Date of Patent: February 16, 2016Assignee: FUJIFILM CorporationInventors: Shinkichi Ikeda, Toshihiro Aoi
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Patent number: 9247471Abstract: The present invention relates to an improved method for handover of a mobile node from E-UTRAN to UTRAN in a scenario where SMS is the only service of the mobile node. The improved handover method allows saving radio resources by establishing the signalling connection for SMS exchange in the target network, and avoiding the data connection in the target network, since it is not used. The MME takes the decision to establish or not the data connection in the target UTRAN, and accordingly instructs the SGSN and UE to set the corresponding PDP contexts for the data connection to a “preserved” state, so as to avoid the establishment of same. Embodiments further relate to improved SMS delivery for IDLE mode UEs that activate ISR so as to avoid the involvement of the MSC server. Instead, packet-switched domain nodes are to be involved only.Type: GrantFiled: April 5, 2012Date of Patent: January 26, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Genadi Velev, Jens Bachmann, Shinkichi Ikeda
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Patent number: 9239451Abstract: The zoom lens substantially consists of a positive first lens group which is fixed while changing magnification, a negative second lens group which moves while changing magnification, a positive third lens group which moves while changing magnification, and a positive fourth lens group which is fixed while changing magnification in this order from the object side. The image formation magnification rates of the second lens group and the third lens group simultaneously pass a ?1× point while changing magnification from the wide angle to the telephoto. The second lens group substantially consists of a negative second-a lens group and a positive second-b lens group which independently move while changing magnification in this order from the object side, and the third lens group substantially consists of a positive third-a lens group and a positive third-b lens group which independently move while changing magnification in this order from the object side.Type: GrantFiled: December 10, 2014Date of Patent: January 19, 2016Assignee: FUJIFILM CorporationInventors: Toshihiro Aoi, Shinkichi Ikeda
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Patent number: 9235034Abstract: A variable magnification optical system substantially consists of a first lens-group having positive refractive-power, and which is fixed during magnification change, a second lens-group having negative refractive-power, a third lens-group having negative refractive-power, a fourth lens-group having negative refractive-power, an aperture stop, which is fixed during magnification change, and a fifth lens-group having positive refractive-power, and which is fixed during magnification change, in this order from an object-side along an optical-axis.Type: GrantFiled: February 7, 2014Date of Patent: January 12, 2016Assignee: FUJIFILM CorporationInventors: Shinkichi Ikeda, Michio Cho
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Patent number: 9229202Abstract: A variable magnification optical system includes a relay lens group (a fifth lens group) substantially consisting of a relay front group and a relay rear group with a predetermined air space therebetween, and which is fixed during magnification change and has image formation action, and an extender lens group insertably and detachably arranged between the relay front group and the relay rear group, and which extends a focal length toward a telephoto side without changing an image formation position. The extender lens group substantially consists of a first lens group having positive refractive power and a second lens group having negative refractive power in this order from an object side. The second lens group is a cemented lens substantially consisting of a convex meniscus lens, a biconcave lens and a convex meniscus lens in this order from the object side.Type: GrantFiled: January 31, 2014Date of Patent: January 5, 2016Assignee: FUJIFILM CorporationInventors: Shinkichi Ikeda, Yasutaka Shimada
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Patent number: 9226256Abstract: Methods for detaching a mobile terminal from a mobile communication network. Furthermore, the invention also relates to a mobile terminal and a mobility management entity that perform these methods. The invention is inter alia applicable to a 3GPP LTE-A system following the Evolved Packet System (EPS) architecture. The invention proposes that the detach procedure of a mobile terminal is triggered by the mobile terminal being transferred into idle state. The mobility management entity can trigger the detach procedure in response to this event. The detach procedure may be deferred by a given time span. A detach timer may be configured in the mobile terminal and the mobility entity for this purpose, and upon expiry of the detach timer in the mobile terminal and the mobility management entity, both silently delete the context information related to the mobile terminal's user plane and control plane to detach the mobile terminal.Type: GrantFiled: March 20, 2012Date of Patent: December 29, 2015Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Genadi Velev, Jens Bachmann, Takahisa Aoyama, Shinkichi Ikeda
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Publication number: 20150355440Abstract: A zoom lens consists of five lens groups including, in order from the object side, positive, negative, positive, positive, and positive lens groups. During magnification change, the first and fifth lens groups are fixed relative to the image plane, and the second, third, and fourth lens groups are moved to change distances therebetween. During magnification change from the wide-angle end to the telephoto end, the second lens group is moved from the object side toward the image plane side, and the fourth lens group is moved from the image plane side toward the object side. The fifth lens group includes at least two negative lenses, and satisfies the condition expression (1) below: 1.90<LABnd??(1).Type: ApplicationFiled: June 4, 2015Publication date: December 10, 2015Inventors: Shinkichi IKEDA, Yasutaka SHIMADA
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Publication number: 20150355436Abstract: A five-group zoom lens includes, in order from the object side, positive, negative, positive, positive, and positive groups. During magnification change, the first and fifth groups are fixed relative to the image plane, and the second, third, and fourth groups are moved to change distances therebetween. During magnification change from the wide-angle end to the telephoto end, the second group is moved from the object side toward the image plane side, the fourth group is moved from the image plane side toward the object side, and a third-fourth combined lens group, which is the combination of the third group combined and the fourth group, and the second group simultaneously pass through their respective points at which the imaging magnification is ?1×. The third-fourth combined lens group includes at least one negative lens, and satisfies the condition expression (1) below: 29<?dG34n<37 ??(1).Type: ApplicationFiled: June 1, 2015Publication date: December 10, 2015Inventors: Yasutaka SHIMADA, Shinkichi IKEDA
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Patent number: 9204415Abstract: The present invention introduces system, apparatus and method that reduce wastage of network resources and mobile phone resources. The mobile phone would indicate its status in a tracking area update message when it is connected to the device. The network can then understand from the status indication that the mobile phone is capable of delivering packets to the device, and would thus allow the server to initiate communications. An absence of the status indication would imply the mobile phone is not capable of delivering packets to the device, and the network would then disallow the server to initiate communications.Type: GrantFiled: October 4, 2010Date of Patent: December 1, 2015Assignee: Panasonic Intellectual Property Corporation of AmericaInventors: Chan Wah Ng, Hong Cheng, Shinkichi Ikeda, Takahisa Aoyama, Jens Bachmann, Sampath Swaroop Kumar, Terufumi Takada, Pek Yew Tan
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Patent number: 9197378Abstract: The present invention discloses a technique for providing a packet recovery method, and the like, capable of starting packet recovery processing without waiting for a wasteful latency (time-out) at a mobile terminal by giving notice of information on a packet discard in a gateway device in real time, thereby enabling improvement in communication quality and communication efficiency.Type: GrantFiled: September 27, 2010Date of Patent: November 24, 2015Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Shinkichi Ikeda, Ryuji Sugizaki, Jun Hirano, Keigo Aso, Takashi Tamura