Patents by Inventor Keizaburo Sasaki
Keizaburo Sasaki 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: 7680122Abstract: A communication method in a third communication apparatus of a first node located between a first communication apparatus of the first node and a second communication apparatus of a second node, the first communication apparatus and the second communication apparatus performing data communication based on PPP.Type: GrantFiled: May 12, 2006Date of Patent: March 16, 2010Assignee: NTT DoCoMo, Inc.Inventors: Keizaburo Sasaki, Hiroyuki Hattori, Noriko Niizato
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Patent number: 7260107Abstract: A data conversion apparatus etc. which inhibits octet/bit insertion to reduce a data transmission amount and improve a throughput in a section not requiring octet/bit insertion during communication based on PPP is provided. Further, a communication apparatus which reduces a control packet on a communication line is provided. When transmitting a data signal from DTE to DTE, octet/bit insertion is performed DTE to a data, and transmission is made. In a DCE, a data having a PPP frame configuration and being octet/bit-inserted is converted into a data having an improved PPP frame configuration and being not octet/bit inserted. In a gateway (NW), a data having the improved PPP frame configuration and being not octet/bit inserted is converted into a data having the PPP frame configuration and being octet/bit inserted. After the data conversion, the gateway transmits a signal including the converted data to DTE. In DTE, octet/bit deletion is performed as in the prior art.Type: GrantFiled: September 21, 2000Date of Patent: August 21, 2007Assignee: NTT DoCoMo, Inc.Inventors: Keizaburo Sasaki, Hiroyuki Hattori, Noriko Niizato
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Publication number: 20060193341Abstract: A communication method in a third communication apparatus of a first node located between a first communication apparatus of the first node and a second communication apparatus of a second node, the first communication apparatus and the second communication apparatus performing data communication based on PPP.Type: ApplicationFiled: May 12, 2006Publication date: August 31, 2006Applicant: NTT DoCoMo, Inc.Inventors: Keizaburo Sasaki, Hiroyuki Hattori, Noriko Nizato
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Patent number: 6898640Abstract: The present invention has the purpose of providing technology capable of efficiently transmitting data when performing data communications between a mobile station and a server apparatus. A simplified protocol TL is employed on the transport layer instead of TCP/IP. The simplified protocol TL is used as the communication protocol on a wireless communication path (radio-oriented interval) between an MS (Mobile Station) 1 and a GWS (GateWay Server) 5. The simplified TL protocol is utilized to relay data communications between the MS 1 and a CPS 8 (Content Provider Server). The response of data communications is therefore improved by a decrease in traffic between the MS 1 and the GWS 5 and reduction in overhead in comparison to when TCP/IP is deployed. As a result, the user can efficiently access content provided by the CPS 8 over the Internet via a wireless communication path.Type: GrantFiled: December 24, 1999Date of Patent: May 24, 2005Assignee: NTT DoCoMo, Inc.Inventors: Shigetaka Kurita, Norihiko Hirose, Masaharu Nakatsuchi, Keizaburo Sasaki
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Publication number: 20040216037Abstract: A document processing apparatus that automatically carries out a transmission operation at the time of a link selection, which selects a telephone number described in the link information without carrying out a useless operation. The link information is the additional information which is not actually displayed, like as the HTML. The document processing apparatus includes a receiver for receiving the document; a link information extractor for extracting the link information from the document; a display for displaying the document based on the link information extracted by the link information extractor; a selector for selecting the link information in the document; and a link operator controller for carrying out the transmission operation to another party when the link information selected by the selector is the telephone number information.Type: ApplicationFiled: May 19, 2004Publication date: October 28, 2004Applicants: Matsushita Electric Industrial Co., Ltd., Matsushita Communication Industrial Co., Ltd., NTT DoCoMo, Inc.Inventors: Toshihiro Hishida, Seiji Ura, Hidehiko Shin, Junji Ishigaki, Keizaburo Sasaki, Eriko Ooseki
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Patent number: 6799300Abstract: A document processing apparatus that automatically carries out a transmission operation at the time of a link selection, which selects a telephone number described in the link information without carrying out a useless operation. The link information is the additional information which is not actually displayed, like as the HTML. The document processing apparatus includes a receiver for receiving the document; a link information extractor for extracting the link information from the document a display for displaying the document based on the link information extracted by the link information extractor; a selector for selecting the link information in the document; and a link operator controller for carrying out the transmission operation to another party, when the link information selected by the selector is the telephone number information.Type: GrantFiled: September 18, 2000Date of Patent: September 28, 2004Assignees: Matsushita Electric Industrial Co., Ltd., Panasonic Mobile Communications Co., Ltd., NTT DoCoMo, Inc.Inventors: Toshihiro Hishida, Seiji Ura, Hidehiko Shin, Junji Ishigaki, Keizaburo Sasaki, Eriko Ooseki
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Publication number: 20040153522Abstract: There is provided a message delivery system which does not generate the lack of the message, by making possible to issue an instruction to the server unit from the client system to process a message, which is received by the client system, at a timing when the client system has completed to receive the message as the application, and then performing the message process on the server unit side in compliance with the instruction.Type: ApplicationFiled: January 21, 2004Publication date: August 5, 2004Applicants: Matsushita Electric Industrial Co., Ltd., Panasonic Mobile Communications Co., Ltd., NTT DoCoMo, Inc.Inventors: Takako Hirose, Hiromi Wada, Yasunori Tanaka, Atsunobu Kato, Masaharu Nakatsuchi, Keizaburo Sasaki
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Patent number: 6708200Abstract: There is provided a communication system capable of reducing the burden of the terminal that is connected to the Internet via the communication network such as the mobile telephone network, whose security is ensured, and is used to carry out the electronic commerce and the banking service. An encryption communication request generating portion (101) of a client system (100) sends out a security request of a communication route to a gateway server unit (200), an encryption communication controlling portion (203) of the gateway server unit sets up encryption communication between a content server unit (300) and the gateway server unit in response to this, the content server unit encrypts data to be transmitted to the client system and then transmits it to the gateway server unit, and an encryption communication controlling portion of the gateway server unit decrypts this data and transmits it to the client system.Type: GrantFiled: September 25, 2000Date of Patent: March 16, 2004Assignees: Matsushita Electric Industrial Co., Ltd., Matsushita Communication Industrial Co., Ltd., NTT DoCoMo, Inc.Inventors: Seiji Ura, Yoshifumi Yonemoto, Hiromi Wada, Junji Ishigaki, Masaharu Nakatsuchi, Keizaburo Sasaki