Patents by Inventor Shinichi Baba
Shinichi Baba 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).
-
Publication number: 20120049667Abstract: A cooling structure includes a rotating electrical machine (1) that has a stator (3), the stator including plural split cores (4) annularly combined, and a shrink-fitted ring (5) mounted to the outer periphery of the plural split cores (4) for integrating the plural split cores (4), and a case (10) that accommodates the rotating electrical machine (1) therein, wherein the shrink-fitted ring (5) includes a cylindrical portion (6), and a flange portion (7) that is provided at one end of the cylindrical portion (6), the case (10) includes an accommodating portion (11) which has an inner peripheral wall (11a) whose inner diameter is larger than the outer diameter of the cylindrical portion (6) and smaller than the outer diameter of the flange portion (7), and in which accommodates the stator (3), a first wall face (12) extending outward in the radial direction from the end of the inner peripheral wall (11a) where the flange portion (7) is arranged, the flange portion (7) being mounted to the first wall face (12),Type: ApplicationFiled: August 30, 2010Publication date: March 1, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuji Iwase, Shinichi Baba, Yosuke Kato, Kouhei Miyake
-
Publication number: 20110249653Abstract: Systems and methods are described for secure and seamless roaming between internal and external networks. Double and triple tunnels may be used to connect a mobile node to a correspondent host. A mobile node may include the ability to connect to two networks simultaneously to enable seamless roaming between networks.Type: ApplicationFiled: June 21, 2011Publication date: October 13, 2011Applicants: TELCORDIA TECHNOLOGIES INC., TOSHIBA AMERICA RESEARCH INC. (TARI)Inventors: Kenichi TANIUCHI, Tao ZHANG, Prathima AGRAWAL, Ashutosh DUTTA, Sunil MADHANI, Shinichi BABA, Kensaku FUJIMOTO, Yasuhiro KATSUBE, Toshikazu KODAMA, Yoshihiro OHBA
-
Patent number: 7978655Abstract: Systems and methods are described for secure and seamless roaming between internal and external networks. Double and triple tunnels may be used to connect a mobile node to a correspondent host. A mobile node may include the ability to connect to two networks simultaneously to enable seamless roaming between networks.Type: GrantFiled: July 21, 2004Date of Patent: July 12, 2011Assignees: Toshiba America Research Inc., Telcordia Technologies, Inc.Inventors: Kenichi Taniuchi, Tao Zhang, Prathima Agrawal, Ashutosh Dutta, Sunil Madhani, Shinichi Baba, Kensaku Fujimoto, Yasuhiro Katsube, Toshikazu Kodama, Yoshihiro Ohba
-
Publication number: 20110156797Abstract: A power semiconductor module includes semiconductor elements of a first system constituting each of arms in a circuit of the first system, semiconductor elements of a second system constituting each of arms in a circuit of the second system, a plurality of DC electrode conductors including a common DC electrode conductor joined to the semiconductor elements of the first and second systems, and a plurality of AC electrode conductors joined to the respective semiconductor elements of the first and second systems. Each of the semiconductor elements of the first and second systems is interposed between the DC electrode conductor and AC electrode conductor.Type: ApplicationFiled: December 28, 2009Publication date: June 30, 2011Inventors: Gou NINOMIYA, Toshiharu Obu, Kazuhiro Ueda, Yoshiyuki Shimizu, Shinichi Baba
-
Patent number: 7860978Abstract: In some illustrative embodiments, an IP-layer based network selection and multihoming method is provided that enables a flexible and secure dynamic selection of one or more serving networks for use by a client node. The method is independent of any link-layer technology. A serving network can be an ISP network, a NAP network exchange facility, a VLAN, or the like. Network information is advertised to a client node, the client node is authenticated and authorized for use of an access router, and a secure tunnel is established between the client node and the access router. The method can be implemented by using standard protocols, and can work over any existing or future link-layer technologies that are able to carry IP datagrams, without any modification.Type: GrantFiled: January 22, 2004Date of Patent: December 28, 2010Assignees: Toshiba America Research, Inc., Telcordia Technologies, Inc.Inventors: Yoshihiro Oba, Shinichi Baba
-
Patent number: 7835743Abstract: A Multi-Interface Mobility Management (MIMM) client is provided on a mobile Multi-Interface Device (MID) to support seamless network connectivity and switching of the MID. The MIMM client communicates with a MIMM Server. The MIMM Server collects information from MIMM Clients and provides information to the MIMM Clients pertaining to the network(s) to which the mobile MID has access, such as information concerning the availability of a network, the quality of network connectivity, etc. The MIMM Client is responsible for determining whether and when a handoff or roaming operation should be initiated by the mobile MID, and which network interface the mobile MID should use after the handoff/roam operation has been completed. The MIMM Client also is responsible for performing mobility-related functions that are required prior and subsequent to the handoff/roam operation. The MIMM Client uses the information received from the MIMM Server in order to make these determinations.Type: GrantFiled: August 3, 2005Date of Patent: November 16, 2010Assignees: Toshiba America Research, Inc., Telcordia Technologies, Inc.Inventors: Tao Zhang, Kim Byungsusk, Toshikazu Kodama, Shinichi Baba, Miriam Tauil
-
Publication number: 20100069184Abstract: A continuously variable transmission belt includes rings each superimposing annular component pieces on each other's inner and outer peripheries, and plural elements attached to the rings side by side in a circumferential direction. Each element includes a neck portion. The rings are disposed on opposite sides of the neck portion. The elements contact a driving pulley and a driven pulley. A lubrication oil discharge mechanism discharges out a lubrication oil in at least one of a gap between the component pieces, and a gap between each ring and the elements. A function of discharging the lubrication oil present in a region remote from the neck portion is higher than a function of discharging the lubrication oil present in a region near the neck portion. Thereby, the rings to which the elements are attached or the component pieces of the rings restrain decline in the centering characteristic in the width direction.Type: ApplicationFiled: December 12, 2007Publication date: March 18, 2010Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Shinichi Baba
-
Publication number: 20090271614Abstract: In some illustrative embodiments, a novel system and method is provided that can, for example, extend concepts of pre-authentication (such as, e.g., IEEE 802.11i pre-authentication) so as to operate across networks or subnetworks (such as, e.g., IP subnets). In preferred embodiments, a novel architecture includes one or both of two new mechanisms that substantially improve, e.g., higher-layer handoff performance. A first mechanism is referred to as “pre-configuration,” which allows a mobile to pre-configure higher-layer information effective in candidate IP subnets to handoff. A second mechanism is referred to as “virtual soft-handoff,” which allows a mobile to send or receive packets through the candidate IP subnets even before it is actually perform a handoff to any of the candidate IP subnets.Type: ApplicationFiled: April 20, 2009Publication date: October 29, 2009Applicants: TOSHIBA AMERICA RESEARCH, INC., TELCORDIA TECHNOLOGIES, INC.Inventors: Yoshihiro Oba, Shinichi Baba
-
Patent number: 7587598Abstract: A system and method are provided for establishing a network communication session using fast authentication. In a network system a client or user device may establish a communication session with a server using full authentication. If the session is interrupted or discontinued and resumption of the session is requested, a session identifier of the previously established session may be compared to the session identifier of the requested session. If a match is detected, the session may be resumed using a fast authentication (or re-authentication) procedure such that the session is resumed more efficiently and expediently. Fast authentication may be performed, for example, even when the first session and the resumed second session are of different authentication layers, different types of network interfaces and/or different locations. Thus, a session, such as a TLS session, may resume functionality among multiple defined authentication protocols or technologies such as 802.1X, PANA or cellular based systems.Type: GrantFiled: July 1, 2003Date of Patent: September 8, 2009Assignees: Toshiba America Research, Inc., Telcordia Technologies, Inc.Inventors: Yoshihiro Ohba, Yashuhiro Katsube, Shinichi Baba, Anthony McAuley, Subir Das
-
Patent number: 7548526Abstract: In some illustrative embodiments, a novel system and method is provided that can, for example, extend concepts of pre-authentication (such as, e.g., IEEE 802.11i pre-authentication) so as to operate across networks or subnetworks (such as, e.g., IP subnets). In preferred embodiments, a novel architecture includes one or both of two new mechanisms that substantially improve, e.g., higher-layer handoff performance. A first mechanism is referred to as “pre-configuration,” which allows a mobile to pre-configure higher-layer information effective in candidate IP subnets to handoff. A second mechanism is referred to as “virtual soft-handoff,” which allows a mobile to send or receive packets through the candidate IP subnets even before it is actually perform a handoff to any of the candidate IP subnets.Type: GrantFiled: April 17, 2006Date of Patent: June 16, 2009Assignees: Toshiba America Research, Inc., Telcordia Technologies, Inc.Inventors: Yoshihiro Oba, Shinichi Baba
-
Patent number: 7480272Abstract: For IP-based wireless systems in which base stations are connected by an IP network and communication among base stations is not controlled by the centralized management, a new system and method for realizing soft handoff by using encapsulation in order to distribute and gather a reproduced packet by the serving base station with other base stations and to transfer the serving role between the base stations as the mobile station moves is described.Type: GrantFiled: April 2, 2001Date of Patent: January 20, 2009Assignees: Toshiba America Research, Inc, Telcordia Technologies, IncInventors: Shinichi Baba, Tadahiko Maeda, Tao Zhang, Prathima Agrawal
-
Patent number: 7277434Abstract: A wireless electronic device includes a first application to output a first packet through a first virtual interface as a wireless electronic device moves from a home subnetwork to a foreign subnetwork. The wireless electronic device also includes a second application utilizing the Mobile Internet Protocol (Mobile IP protocol) to output a second packet through a second interface as the wireless electronic device moves from the home subnetwork to the foreign subnetwork. A common physical interface is tied to the first virtual interface and the second interface of the wireless electronic device, wherein the physical interface of the wireless electronic device receives the first packet and the second packet, and outputs the first packet and the second packet from the wireless electronic device after the wireless electronic device has moved.Type: GrantFiled: November 7, 2003Date of Patent: October 2, 2007Assignee: Toshiba America Information Systems, Inc.Inventors: Shaun Astarabadi, Shinichi Baba, Joseph Meilak, C. Thomas Carr
-
Publication number: 20070171870Abstract: In some illustrative embodiments, a novel system and method is provided that can, for example, extend concepts of pre-authentication (such as, e.g., IEEE 802.11i pre-authentication) so as to operate across networks or subnetworks (such as, e.g., IP subnets). In preferred embodiments, a novel architecture includes one or both of two new mechanisms that substantially improve, e.g., higher-layer handoff performance. A first mechanism is referred to as “pre-configuration,” which allows a mobile to pre-configure higher-layer information effective in candidate IP subnets to handoff. A second mechanism is referred to as “virtual soft-handoff,” which allows a mobile to send or receive packets through the candidate IP subnets even before it is actually perform a handoff to any of the candidate IP subnets.Type: ApplicationFiled: April 17, 2006Publication date: July 26, 2007Applicant: Toshiba America Research, Inc.Inventors: Yoshihiro Oba, Shinichi Baba
-
Patent number: 7184418Abstract: The present invention is directed to a mobility management protocol for supporting real-time and non-real-time multimedia applications on mobile stations of third generation internet protocol (3G-IP) networks. The present invention utilizes as well as extends the session initiation protocol (SIP) to provide for domain hand-off (i.e., roaming) and subnet hand-off (i.e., macro-mobility) so that users can access the network from any location using their own mobile station as they roam across different 3G-IP networks. The present invention supports mobile transmission control protocol (TCP) applications without modifying TCP.Type: GrantFiled: October 20, 2000Date of Patent: February 27, 2007Assignees: Telcordia Technologies, Inc., Toshiba America Research, Inc.Inventors: Shinichi Baba, Jyh-Cheng Chen, Ashutosh Dutta, Yasuro Shobatake, Faramak Vakil
-
Publication number: 20070030826Abstract: A Multi-Interface Mobility Management (MIMM) client is provided on a mobile Multi-Interface Device (MID) to support seamless network connectivity and switching of the MID. The MIMM client communicates with a MIMM Server. The MIMM Server collects information from MIMM Clients and provides information to the MIMM Clients pertaining to the network(s) to which the mobile MID has access, such as information concerning the availability of a network, the quality of network connectivity, etc. The MIMM Client is responsible for determining whether and when a handoff or roaming operation should be initiated by the mobile MID, and which network interface the mobile MID should use after the handoff/roam operation has been completed. The MIMM Client also is responsible for performing mobility-related functions that are required prior and subsequent to the handoff/roam operation. The MIMM Client uses the information received from the MIMM Server in order to make these determinations.Type: ApplicationFiled: August 3, 2005Publication date: February 8, 2007Applicants: Toshiba America Research, Inc., Telcordia Inc.Inventors: Tao Zhang, Kim Byungsusk, Toshikazu Kodama, Shinichi Baba, Miriam Tauil
-
Patent number: 7162247Abstract: The invention relates to a system and method for autonomously setting up a base station. The new base station monitors signals from other base stations to determine how it relates to the other base stations. Next, the base station forms and transmits a list of other base stations with suggested handoff rankings to other base stations. Embodiments include source assisted soft handoff including the source base station requesting and forwarding information to mobile stations being handed off to a target base station.Type: GrantFiled: April 17, 2001Date of Patent: January 9, 2007Assignee: Toshiba America Research, Inc.Inventors: Shinichi Baba, Tadahiko Maeda
-
Patent number: 7161942Abstract: A method for distributing and conditioning IP traffic for mobile networks based on differentiated services, wherein edge/border routers are only required to maintain QoS profiles for related mobile stations. A new IP address or a new service level subscription or service level agreement of an mobile station is only sent to related edge/border routers. As a result, unnecessary IP traffic is significantly reduced. The routers in accordance with methods of the invention disregard the contents of an IP payload and therefore all of the IP addresses that a mobile station may posse. A mobile station is permitted to enter into a domain and obtain a desired quality of service (e.g., Gold or Standard service) without the need to maintain the service while moving through the domain.Type: GrantFiled: January 31, 2002Date of Patent: January 9, 2007Assignees: Telcordia Technologies, Inc., Toshiba America Research, Inc.Inventors: Jyh Cheng Chen, Anthony McAuley, Shinichi Baba, Yoshihiro Ohba
-
Patent number: 7072317Abstract: A Virtual Soft-Hand-off method for wireless IP-centric CDMA networks whose routers, hosts, and mobile stations have small group multicast (SGM) capability comprises setting up an explicit synchronous multicast session among a small group of participants with dynamic group membership. Packets transmitted over the multicast session are time stamped to help maintain synchronization, and the receivers recover multiple packet flows from the multiple received signals concurrently and combine them to create a single packet flow at higher layers.Type: GrantFiled: March 22, 2002Date of Patent: July 4, 2006Assignees: Telcordia Technologies, Inc., Toshiba America Research, Inc.Inventors: Faramak Vakil, David Famolari, Shinichi Baba, Tadahiko Maeda
-
Patent number: 7046647Abstract: In some illustrative embodiments, a novel system and method is provided that can, for example, extend concepts of pre-authentication (such as, e.g., IEEE 802.11i pre-authentication) so as to operate across networks or subnetworks (such as, e.g., IP subnets). In preferred embodiments, a novel architecture includes one or both of two new mechanisms that substantially improve, e.g., higher-layer handoff performance. A first mechanism is referred to as “pre-configuration,” which allows a mobile to pre-configure higher-layer information effective in candidate IP subnets to handoff. A second mechanism is referred to as “virtual soft-handoff,” which allows a mobile to send or receive packets through the candidate IP subnets even before it is actually perform a handoff to any of the candidate IP subnets.Type: GrantFiled: January 22, 2004Date of Patent: May 16, 2006Assignee: Toshiba America Research, Inc.Inventors: Yoshihiro Oba, Shinichi Baba
-
Patent number: 6999434Abstract: Method, system, and circuitry for successfully completing soft handoff in an Internet Protocol (IP) based autonomous base station wireless Code Division Multiple Access network, wherein processing is done at the serving base station so that target base stations need only set up the channel for transmitting the copied data needed for soft handoff. Concomitant circuitry comprises packet data multiplexers/assemblers and demultiplexers/de-assemblers for performing cross-layer switching. Data packets are sent by a serving base station to a mobile unit while the mobile is in a soft handoff region. The serving base station also sends copies of the data packets to target base stations, the target base stations in turn relay these data packets to the mobile. The mobile synchronizes the copies of the data packets received and combines the packets to recover the data.Type: GrantFiled: November 28, 2000Date of Patent: February 14, 2006Assignees: Telcordia Technologies, Inc., Toshiba America Research, Inc.Inventors: Prathima Agrawal, Shinichi Baba, Tadahiko Maeda, Tao Zhang