Patents by Inventor Hiroshi Maruyama
Hiroshi Maruyama 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: 8264252Abstract: The termination circuit includes first and second resistance circuits and is connected to a transmission line. The first resistance circuit is disposed on at least one of a pull-up side, which is between the transmission line and a power source, and a pull-down side, which is between the transmission line and ground, and has a negative property, by which an increase in an applied voltage decreases a resistance value of the first resistance circuit. The second resistance circuit is connected in parallel to the first resistance circuit. The second resistance circuit has a positive property, by which an increase in the applied voltage increases a resistance value of the second resistance circuit.Type: GrantFiled: September 27, 2010Date of Patent: September 11, 2012Assignee: Fujitsu LimitedInventor: Hiroshi Maruyama
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Publication number: 20120195679Abstract: With the aim of providing a rotation transmitting member that suppresses the occurrence of abnormal noises, a rotation transmitting member includes a fitting portion (23) formed at an end portion and having an irregular shaped cross section to be fitted into a hole having an irregular shaped cross section and a heat-shrinkable tube (41) covering the fitting portion (23). A shrink portion (43) of the heat-shrinkable tube (41) caused to shrink by heat so as to firmly adhere to an outer surface of the fitting portion (23) is formed on a tip end side of the fitting portion (23). A non-shrink portion (45) of the heat-shrinkable tube (41) not subjected to heat shrinkage is formed on a base end side of the fitting portion (23).Type: ApplicationFiled: October 4, 2010Publication date: August 2, 2012Inventors: Isao Tanaka, Hiroshi Maruyama
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Publication number: 20120185694Abstract: To provide an information processing apparatus, a server apparatus, a method of an information processing apparatus, a method of a server apparatus, and an apparatus executable program. An information processing apparatus uses signed integrity values unique to software configuration and asserting integrity of initial codes of a networked server. The server apparatus generates keys used for certifying the server apparatus (S810, S820, S830). One of the keys are certified by a third party to generate a digital signature (S840). The digital signature is attached to the integrity values and the signed integrity values are transmitted to the information processing apparatus for allowing the information processing apparatus to have secure services through the network (S850, S860).Type: ApplicationFiled: March 28, 2012Publication date: July 19, 2012Applicant: International Business Machines CorporationInventors: SEIJI MUNETOH, HIROSHI MARUYAMA, FRANK SELIGER, NATARAJ NAGARATNAM
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Publication number: 20120154698Abstract: A stereoscopic image display apparatus reduces flicker and crosstalk, and provides a viewing screen of high brightness without decreasing resolution. The stereoscopic image display apparatus includes: a liquid crystal display which has a first image forming area and a second image forming area corresponding to horizontal rows; and an optical unit in which a first polarizing area and a second polarizing area are arranged in correspondence with the first and second image forming areas. A frame image displays a right eye image on the first image forming area and a left eye image on the second image forming area, and alternately replaces or overwrites the image forming areas every time the frame is switched. The optical unit replaces, in synchronization with the timing at which the first and second image forming areas are replaced. The phase difference states are replaced between the first polarizing area and the second polarizing area.Type: ApplicationFiled: May 25, 2011Publication date: June 21, 2012Applicant: ARISAWA MFG. CO., LTD.Inventors: Kenji Matsuhiro, Yoshihiro Yoshihara, Hiroshi Maruyama
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Publication number: 20120147281Abstract: A stereoscopic image display apparatus which reduces flicker and crosstalk, provides a viewing screen of high brightness without decreased resolution. The stereoscopic image display apparatus includes a liquid crystal display which has first and second image forming areas having horizontal rows of pixels, and an optical unit in which first and second polarizing areas associated with the first and second image forming areas are arranged. A right eye image is displayed on the first image forming areas and a left eye image is displayed on the second image forming areas, and these areas are alternately replaced or overwritten every time a frame is switched. Phase difference states are replaced between the first polarizing areas and the second polarizing areas of the optical unit, synchronized with replacement of the first and second image forming areas.Type: ApplicationFiled: March 17, 2011Publication date: June 14, 2012Applicant: ARISAWA MFG. CO., LTD.Inventors: Kenji Matsuhiro, Yoshihiro Yoshihara, Hiroshi Maruyama
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Patent number: 8171295Abstract: To provide an information processing apparatus, a server apparatus, a method of an information processing apparatus, a method of a server apparatus, and an apparatus executable program. An information processing apparatus uses signed integrity values unique to software configuration and asserting integrity of initial codes of a networked server. The server apparatus generates keys used for certifying the server apparatus (S810, S820, S830). One of the keys are certified by a third party to generate a digital signature (S840). The digital signature is attached to the integrity values and the signed integrity values are transmitted to the information processing apparatus for allowing the information processing apparatus to have secure services through the network (S850, S860).Type: GrantFiled: December 2, 2004Date of Patent: May 1, 2012Assignee: International Business Machines CorporationInventors: Seiji Munetoh, Hiroshi Maruyama, Frank Seliger, Nataraj Nagaratnam
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Publication number: 20110197283Abstract: A security device of this invention includes a nonvolatile storage unit 22 for storing a validity check unit including a counter updated every time signature function means 30 is called up, a volatile storage unit 24 for reading and storing a counter array out of an external nonvolatile storage unit storing the counter array, in which the counter array is obtained by coupling a hash value generated for each signature key with a signature number counter for counting the number of signatures performed by use of the signature key, and a hash function unit 28 for reading the counter array out of the volatile storage unit 24, generating the hash value, and transferring the hash value to the validity check unit for a validity check.Type: ApplicationFiled: April 14, 2011Publication date: August 11, 2011Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: HIROSHI MARUYAMA, SEIJI MUNETOH, SACHIKO YOSHIHAMA
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Publication number: 20110128098Abstract: The termination circuit includes first and second resistance circuits and is connected to a transmission line. The first resistance circuit is disposed on at least one of a pull-up side, which is between the transmission line and a power source, and a pull-down side, which is between the transmission line and ground, and has a negative property, by which an increase in an applied voltage decreases a resistance value of the first resistance circuit. The second resistance circuit is connected in parallel to the first resistance circuit. The second resistance circuit has a positive property, by which an increase in the applied voltage increases a resistance value of the second resistance circuit.Type: ApplicationFiled: September 27, 2010Publication date: June 2, 2011Inventor: Hiroshi MARUYAMA
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Patent number: 7953977Abstract: A security device of this invention includes a nonvolatile storage unit 22 for storing a validity check unit including a counter updated every time signature function means 30 is called up, a volatile storage unit 24 for reading and storing a counter array out of an external nonvolatile storage unit storing the counter array, in which the counter array is obtained by coupling a hash value generated for each signature key with a signature number counter for counting the number of signatures performed by use of the signature key, and a hash function unit 28 for reading the counter array out of the volatile storage unit 24, generating the hash value, and transferring the hash value to the validity check unit for a validity check.Type: GrantFiled: June 16, 2008Date of Patent: May 31, 2011Assignee: International Business Machines CorporationInventors: Hiroshi Maruyama, Seiji Munetoh, Sachiko Yoshihama
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Patent number: 7930563Abstract: A platform configuration measurement device including: a configuration register; means for executing extension processing in which a predetermined operation is performed on a content of the configuration register by using a given additional value, a hash value is obtained by applying a predetermined hash function to a value obtained by the predetermined operation, and the hash value is set for a new content of the configuration register; and measurement extension means for obtaining measured values, corresponding to predetermined components constituting a platform, by sequentially making predetermined measurement on the predetermined components, and for allowing the means for executing extension processing to execute the extension processing using the measured values as the additional values, random extension means is provided for allowing the means for executing extension processing to execute the extension processing using a random value as the additional value.Type: GrantFiled: July 1, 2008Date of Patent: April 19, 2011Assignee: International Business Machines CorporationInventors: Timothy David Ebringer, Sachiko Yoshihama, Seiji Munetoh, Hiroshi Maruyama
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Publication number: 20110063424Abstract: Right and left eye images constituting each frame image are displayed on odd and even horizontal lines, or even and odd horizontal lines, respectively, of a display screen of a liquid crystal display. When the display switches from one frame to the next, the right and left eye images are switched between the odd and even horizontal lines, or the displayed right and left eye images are overwritten with the same images, so that the right and left eye images are interlaced with each other. Each time the right and left eye images are switched between the odd and even horizontal lines, the lighting state of the backlight is adjusted and the right and left sides of the polarized glasses are switched between two retarding states so that the right side is in one retarding state, the left side is in the other retarding state, and vice versa.Type: ApplicationFiled: September 10, 2010Publication date: March 17, 2011Applicant: ARISAWA MFG. CO., LTD.Inventors: Kenji Matsuhiro, Michiyuki Kohno, Yoshihiro Yoshihara, Hiroshi Maruyama
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Patent number: 7774450Abstract: The present invention creates a SOAP message without using DOM by generating a body part by sequentially performing such a process of a message as encryption or signing for each piece of the message, generating a header part by using information acquired during the process, and by combining the body part and the header part. The present invention also breaks a SOAP message without using DOM by acquiring header information with parsing a received SOAP message and sequentially performing decode or verification of a signature of a body part according to the header information.Type: GrantFiled: March 20, 2008Date of Patent: August 10, 2010Assignee: International Business Machines CorporationInventors: Takeshi Imamura, James Andrew Clark, Hiroshi Maruyama, Yumi Yamaguchi, Masayoshi Teraguchi, Takayuki Itoh, Fumiko Satoh
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Patent number: 7763318Abstract: A method for improving the heat stability of polyparaxylylene and a derivative film thereof to improve the heat resistance of the polyparaxylylene and the derivative film thereof without deteriorating deposition characteristics or profitability, and a polyparaxylylene derivative whose heat resistance is improved are provided. When the polyparaxylylene or the derivative film thereof represented by a below-described general formula 1 is formed by a chemical vapor deposition method, an amino-(2.2)-paracyclophane compound represented by a below-described general formula 3 is mixed in a (2.2)-paracyclophane compound represented by a below-described general formula 2 to form a film. (In the formula 1, X1 and X2 designate hydrogen, lower alkyl or halogen. X1 and X2 may be the same or different. n represents a degree of polymerization.) (In the formula 2, X1 and X2 have the same meanings as those of the formula 1.) (In the formula 3, X3 designates hydrogen or a lower alkyl group.Type: GrantFiled: December 19, 2003Date of Patent: July 27, 2010Assignee: Daisankasei Co., Ltd.Inventors: Hiroshi Maruyama, Tsutomu Mochizuki, Takashi Inoue
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Patent number: 7753529Abstract: An image display device which displays an image to a viewer in front thereof without cross-talk and displays a two-dimensional image in wider space is provided. The image display device which projects an image on the viewer includes; a light source unit which emits light to the viewer; an imaging section in which an image is formed; optical means in which the light emitted from the light source unit is transmitted to enter the imaging section; and a viewing angle controller which diffuses and spreads the light directed to the left eye of the viewer in the left area from the left eye of the viewer, and the light directed to the right eye of the viewer in the right area from the right eye of the viewer.Type: GrantFiled: March 31, 2006Date of Patent: July 13, 2010Assignee: Arisawa Mfg. Co., Ltd.Inventors: Kei Fukaishi, Yoshihiro Yoshihara, Hiroshi Maruyama
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Patent number: 7752465Abstract: A platform configuration measurement device including: a configuration register; means for executing extension processing in which a predetermined operation is performed on a content of the configuration register by using a given additional value, a hash value is obtained by applying a predetermined hash function to a value obtained by the predetermined operation, and the hash value is set for a new content of the configuration register; and measurement extension means for obtaining measured values, corresponding to predetermined components constituting a platform, by sequentially making predetermined measurement on the predetermined components, and for allowing the means for executing extension processing to execute the extension processing using the measured values as the additional values, random extension means is provided for allowing the means for executing extension processing to execute the extension processing using a random value as the additional value.Type: GrantFiled: April 7, 2005Date of Patent: July 6, 2010Assignee: International Business Machines CorporationInventors: Tim Ebringer, Sachiko Yoshihama, Seiji Munetoh, Hiroshi Maruyama
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Patent number: 7739743Abstract: Provision of a technology capable of presenting information regarding derivative files secondarily derived and created from a leaked file, by retrieving the first leaked file, and capable of presenting personal information recorded on a computer accessible via a wide area network. There is provided an apparatus including a recording section for recording original data of a leaked file, an extracting section for extracting the original data and representations corresponding to information that should be prevented from being leaked and included in one or more files existing in a recording area to be investigated, an investigating section for investigating a degree of association between the file existing in the recording area to be investigated and the original data based on the extracted representations, and a presenting section for presenting information on a file created based on the leak.Type: GrantFiled: February 28, 2006Date of Patent: June 15, 2010Assignee: International Business Machines CorporationInventors: Masaharu Itoi, Hiroshi Maruyama, Hiroshi Nomiyama
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Publication number: 20100077223Abstract: To prevent an input password from being stolen by an invalid authentication device. An authentication device 10 for authenticating an inputter based on an input password accepted from the inputter is provided with a first input part 110 for allowing a first part of the input password to be inputted; a confirmation information output part 120 for outputting confirmation information known to the valid inputter in advance when the first part 10 is valid, the confirmation information indicating to the user that the authentication device is valid; a second input part 130 for allowing a second part following the first part of the input password to be inputted; and a determination part 140 for determining that the inputter is valid when the first part and the second part are valid.Type: ApplicationFiled: August 19, 2009Publication date: March 25, 2010Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Hiroshi Maruyama, Taiga Nakamura
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Publication number: 20100005304Abstract: A security device of this invention includes a nonvolatile storage unit 22 for storing a validity check unit including a counter updated every time signature function means 30 is called up, a volatile storage unit 24 for reading and storing a counter array out of an external nonvolatile storage unit storing the counter array, in which the counter array is obtained by coupling a hash value generated for each signature key with a signature number counter for counting the number of signatures performed by use of the signature key, and a hash function unit 28 for reading the counter array out of the volatile storage unit 24, generating the hash value, and transferring the hash value to the validity check unit for a validity check.Type: ApplicationFiled: June 16, 2008Publication date: January 7, 2010Inventors: Hiroshi Maruyama, Seiji Munetoh, Sachiko Yoshihama
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Patent number: 7610489Abstract: To prevent an input password from being stolen by an invalid authentication device. An authentication device 10 for authenticating an inputter based on an input password accepted from the inputter is provided with a first input part 110 for allowing a first part of the input password to be inputted; a confirmation information output part 120 for outputting confirmation information known to the valid inputter in advance when the first part 10 is valid, the confirmation information indicating to the user that the authentication device is valid; a second input part 130 for allowing a second part following the first part of the input password to be inputted; and a determination part 140 for determining that the inputter is valid when the first part and the second part are valid.Type: GrantFiled: December 18, 2003Date of Patent: October 27, 2009Assignee: International Business Machines CorporationInventors: Hiroshi Maruyama, Taiga Nakamura
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Publication number: 20090070573Abstract: A platform configuration measurement device including: a configuration register; means for executing extension processing in which a predetermined operation is performed on a content of the configuration register by using a given additional value, a hash value is obtained by applying a predetermined hash function to a value obtained by the predetermined operation, and the hash value is set for a new content of the configuration register; and measurement extension means for obtaining measured values, corresponding to predetermined components constituting a platform, by sequentially making predetermined measurement on the predetermined components, and for allowing the means for executing extension processing to execute the extension processing using the measured values as the additional values, random extension means is provided for allowing the means for executing extension processing to execute the extension processing using a random value as the additional value.Type: ApplicationFiled: July 1, 2008Publication date: March 12, 2009Inventors: Timothy David Ebringer, Sachiko Yoshihama, Seiji Munetoh, Hiroshi Maruyama