Patents by Inventor Masahiro Tsuchiya
Masahiro Tsuchiya 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: 20090232440Abstract: It is an object of the present invention to provide an optical modulation system capable of suppressing a carrier component (f0) and a high order component (such as a second order component (f0±2fm)). The optical modulation system includes Mach-Zehnder waveguide (8), a first intensity modulator (9) provided on a first arm (4), a second intensity modulator (10) provided on a second arm (5), a first main Mach-Zehnder electrode (MZCA electrode) (13a), and a second main Mach-Zehnder electrode (MZCB electrode) (13b). Non-desired components propagating the respective arms are made to have reverse phase before optical signals are combined, whereby the optical modulation system is capable of suppressing the non-desired components when the optical signals are combined.Type: ApplicationFiled: August 30, 2006Publication date: September 17, 2009Applicant: National Institute of Information and CommunicationsInventors: Tetsuya Kawanishi, Masayuki Izutsu, Takahide Sakamoto, Masahiro Tsuchiya
-
Publication number: 20090151582Abstract: A printer device having a detachable thermal head, the thermal head being precisely positioned relative to a platen, whereby the printer device is capable of printing characters or the like, of a stable quality, on printing paper having different thickness'. A head module of the printer an attachment member detachably attached to a main frame; a movable support member movable relative to the attachment member; and a thermal head fixedly supported by the movable support member. The movable support member is connected to the attachment member via a plurality of head springs, and has a head positioning protruding portion configured to engage with a head positioning recess portion of the attachment member. The recess portion is formed as a groove which is generally straight, whereby the movable support member and the thermal head 44 may be straightly displaced relative to the attachment member only in the extending direction of the groove.Type: ApplicationFiled: December 12, 2008Publication date: June 18, 2009Applicant: FUJITSU COMPONENT LIMITEDInventors: Yoshinari Takabatake, Masafumi Chiba, Masahiro Tsuchiya, Yoichi Takamura, Yukihiro Mori, Kunihiko Funada
-
Publication number: 20090151526Abstract: A simple and compact rotary cutter unit capable of detecting a home position of a rotary cutter, and a printer device having the rotary cutter unit. A radially outwardly extending fin-shaped detected member is arranged on an end portion of the rotating blade opposed to a second gear of the rotating blade. A photosensor is arranged within a main frame of the printer device so that the photosensor may detect the fin-shaped member when the rotating blade is positioned at the home position. The fin-shaped member and the photosensor are not positioned outside relative to both ends of the rotating blade in relation to the direction of the rotational axis of the rotating blade. Therefore, it is not necessary to increase the width of the printer device due to the presence of the fin-shaped member or the photosensor, whereby the printer device may be compactly constituted.Type: ApplicationFiled: December 12, 2008Publication date: June 18, 2009Applicant: FUJITSU COMPONENT LIMITEDInventors: Masafumi Chiba, Yukihiro Mori, Yoshinari Takabatake, Masahiro Tsuchiya, Kunihiko Funada, Yoichi Takamura
-
Publication number: 20090139569Abstract: Provided is a method of manufacturing a photoelectric conversion device capable of maintaining a durability and improving initial characteristics. A dye-sensitized photoelectric conversion device including a working electrode and a facing electrode, and an electrolyte inclusion is manufactured. First, a facing electrode in which a dye is carried by a metal oxide semiconductor layer having a porous structure, and a facing electrode are manufactured. Next, the working electrode and the facing electrode are stuck together so as to have a predetermined space in between. A low-viscosity liquid is injected between the working electrode and the facing electrode and impregnated into the porous structure. Then, the high-viscosity material is injected and the electrolyte is adjusted so as to form the electrolyte inclusion. Even if the viscosity of the electrolyte is high, an electrolytic salt is quickly dispersed into the porous structure.Type: ApplicationFiled: November 26, 2008Publication date: June 4, 2009Applicant: TDK CORPORATIONInventors: Masahiro Tsuchiya, Tokuhiko Handa, Atsushi Monden, Masahiro Shinkai
-
Publication number: 20090103924Abstract: The present invention is to provide an optical modulating system for generating a signal of a frequency (f0+2fm) and a signal of a frequency (f0?2fm) and suppressing a signal of a frequency (f0) by a DSB-SC modulator. A fourth harmonic generating system for solving the above problem comprises a first DSB-SC modulator (2) a second DSB-SC modulator (3) and a signal control section (5) for controlling a modulating signal from a signal source (4) for generating modulating signals applied to the first and second DSB-SC modulators (2,3) so that a lower side-band signal (f0) generated by modulating the upper side-band signal of the DSB-SC modulator (2) by the DSB-SC modulator (3) and an upper side-band signal (f0) generated by modulating the lower side-band signal of the DSB-SC modulator (2) by the DSB-SC modulator (3) cancel each other.Type: ApplicationFiled: August 8, 2006Publication date: April 23, 2009Inventors: Tetsuya Kawanishi, Masayuki Izutsu, Takahide Sakamoto, Masahiro Tsuchiya
-
Publication number: 20090103163Abstract: In order to provide a reciprocating optical modulation system capable of obtaining a broad bandwidth, a reciprocating optical modulation system (1) of the present invention is basically provided with an optical modulator (2) modulating an output light by controlling one of an intensity, a phase and a frequency of an input light; a first fiber grating (3) transmitting a light of a predetermined frequency domain among lights inputted to and outputted from the optical modulator while reflecting lights of other frequencies; a second fiber grating (4) transmitting a light of a predetermined frequency domain among lights inputted to and outputted from the optical modulator while reflecting lights of other frequencies; and a signal source (5) generating a modulating signal to be inputted to the optical modulator (2).Type: ApplicationFiled: August 9, 2006Publication date: April 23, 2009Applicant: National Institute of Information and Communivations TechnologyInventors: Tetsuya Kawanishi, Masayuki Izutsu, Takahide Sakamoto, Masahiro Tsuchiya
-
Publication number: 20090041472Abstract: An optical modulator achieving high extinction ratio and an optical modulator system. By a control system performing an adjustment method comprising predetermined steps by applying a bias voltage daringly to a modulation electrode for switching the USB signal and LSB signal of an established optical SSB modulator or optical FSK modulator, a means for adjusting bias voltage applied to each bias electrode preferably automatically is provided and a bias point where the extinction ratio of an optical modulator is maximized can be obtained.Type: ApplicationFiled: August 23, 2006Publication date: February 12, 2009Inventors: Tetsuya Kawanishi, Masayuki Izutsu, Takahide Sakamoto, Masahiro Tsuchiya
-
Publication number: 20090016796Abstract: A printer having a platen roller and a module that are engagable with each other for printing on paper is disclosed. The printer includes a status detecting mechanism including a detecting part having a detection function for detecting a status of the printer, a restricting part for restricting the detection function of the detecting part, and a function restriction releasing part for releasing the restricted function of the detecting part. The engagement of the platen roller and the module displaces the function restriction releasing part. The displacement causes the function restriction releasing part to release the restricted function of the detecting part.Type: ApplicationFiled: January 31, 2008Publication date: January 15, 2009Applicant: FUJITSU COMPONENT LIMITEDInventors: Masahiro Tsuchiya, Yukihiro Mori, Sumio Watanabe
-
Publication number: 20080260448Abstract: A printer device is disclosed that has a cutter function and a thermal head, and is low profile but is suitable for thick paper. The printer device includes a first module and a second module. The first module includes a turning blade driving motor, a platen roller driving motor, a platen roller driven to rotate by the platen roller driving motor, and a fixed blade provided on a first frame. The second module includes a printing head and a turning blade provided on a second frame. When the first module and the second module are connected together, the printing head faces the platen roller, the turning blade faces the fixed blade, and rotation of the turning blade driving motor is transmitted to the turning blade.Type: ApplicationFiled: November 20, 2007Publication date: October 23, 2008Applicant: FUJITSU COMPONENT LIMITEDInventors: Masahiro Tsuchiya, Yukihiro Mori, Sumio Watanabe
-
Publication number: 20080238419Abstract: A condenser lens is incorporated into the end portion of a magnetic field measuring apparatus including a magneto-optical crystal. Alternatively, the end portion of the magnetic field measuring device includes an optical fiber having a core diameter smaller than that of a normal single-mode optical fiber.Type: ApplicationFiled: April 25, 2008Publication date: October 2, 2008Applicant: NEC CORPORATIONInventors: Mizuki IWANAMI, Shigeki HOSHINO, Masahiro TSUCHIYA, Masato KISHI
-
Publication number: 20080236663Abstract: Provided is a photoelectric conversion device capable of improving a conversion efficiency. In a dye-sensitized photoelectric conversion device including a working electrode and a facing electrode, and an electrolyte inclusion, a dye is carried on a metal-oxide semiconductor layer of the working electrode. The dye includes cyanine dye having a benzyl group and an indolenine skeleton. Therefore, crystallization of the dye on the surface of the metal-oxide semiconductor layer is suppressed.Type: ApplicationFiled: March 27, 2008Publication date: October 2, 2008Applicant: TDK CORPORATIONInventors: Junji Tanabe, Masahiro Tsuchiya, Hidenori Shinohara, Atsushi Monden, Masahiro Shinkai, Tokuhiko Handa
-
Publication number: 20080212915Abstract: A nested modulator is provided where the circuit arrangement of modifying electrodes including signal electrodes is simplified, and at the same time, the drive voltage can be lowered.Type: ApplicationFiled: November 7, 2007Publication date: September 4, 2008Applicants: Sumitomo Osaka Cement Co., Ltd., National Institute for Materials Science, National Institute of Information and Communications TechnologyInventors: Junichiro Ichikawa, Kaoru Higuma, Futoshi Yamamoto, Satoshi Oikawa, Shingo Mori, Sunao Kurimura, Kenji Kitamura, Tetsuya Kawanishi, Masahiro Tsuchiya, Masayuki Izutsu
-
Patent number: 7395036Abstract: In a high frequency power amplifier circuit in which bias voltages are applied to the transistors for amplification by current mirroring, The power amplifier includes a detection circuit including a transistor for detection which receives the AC component of an input signal to the last-stage transistor for amplification at its control terminal, a current mirror circuit which mirrors current flowing through that transistor, and a current-voltage converter which converts current flowing in the slave side of the current mirror circuit into a voltage. In the detection circuit, a voltage from a bias circuit for generating the bias voltages for the transistors for amplification is applied to the control terminal of the transistor for detections, and output of the detection circuit is applied to the control terminal of the last-stage transistor for amplification.Type: GrantFiled: September 1, 2005Date of Patent: July 1, 2008Assignee: Renesas Technology Corp.Inventors: Hitoshi Akamine, Masahiro Tsuchiya, Kyoichi Takahashi, Kazuhiro Koshio
-
Patent number: 7385393Abstract: A condenser lens is incorporated into the end portion of a magnetic field measuring apparatus including a magneto-optical crystal. Alternatively, the end portion of the magnetic field measuring device includes an optical fiber having a core diameter smaller than that of a normal single-mode optical fiber.Type: GrantFiled: August 27, 2004Date of Patent: June 10, 2008Assignee: NEC CorporationInventors: Mizuki Iwanami, Shigeki Hoshino, Masahiro Tsuchiya, Masato Kishi
-
Publication number: 20080096999Abstract: This invention provides a novel pigment, which is used, for example, in color image display devices and can form a blue pixel capable of providing a high level of bright saturation, particularly a refined pigment, which has bright hue and is excellent in pigment properties such as lightfastness, solvent resistance and heat resistance, and a process for producing the same, a pigment dispersion using the pigment, and an ink for a color filter. The novel pigment is a subphthalocyanine pigment that is prepared by converting subphthalocyanine represented by general formula (1), in which X represents a halogen atom, to a pigment, has diffraction peaks at least at diffraction angles (2?) 7.0°, 12.3°, 20.4° and 23.4° in X-ray diffraction and an average particle diameter of 120 to 20 nm.Type: ApplicationFiled: July 26, 2005Publication date: April 24, 2008Inventors: Naoki Hirata, Hisao Okamoto, Yoshiyuki Zama, Michiei Nakamura, Tetsuya Yanagimoto, Hiroaki Yamada, Masahiro Tsuchiya
-
Patent number: 7362346Abstract: A printer apparatus is disclosed that includes a printer unit, a first chassis, and a second chassis that is arranged to open/close through rotation. The printer unit includes a thermal head, a first module having a motor, and a second module having a platen roller and a rotating body. The first chassis includes a heat sensitive paper roll accommodating portion and a mount portion to which the first module is mounted. The second chassis includes mount portions to which the second module and a printed paper roll shaft are mounted, a printed paper roll accommodating portion, and a rotation transmitting mechanism. When the second chassis is closed, the heat sensitive paper roll accommodating portion is closed, the second module is coupled to the first module, the rotating body is rotated by the motor, and the shaft is rotated by the motor via the rotating body and the rotation transmitting mechanism.Type: GrantFiled: December 13, 2005Date of Patent: April 22, 2008Assignee: Fujitsu Component LimitedInventors: Sumio Watanabe, Fumio Sakurai, Yukihiro Mori, Masahiro Tsuchiya
-
Publication number: 20080078438Abstract: Provided is a photoelectric conversion device having a simple structure including a plurality of end-face incident type photoelectric conversion cells. A plurality of dye-sensitized unit cells are disposed on folded faces of the metal sheet that is in a folded form. In these unit cells, a light which comes from a lateral end face of a stacked structure of each unit cell is photoelectrically converted. The manufacturing process of a soar cell is simplified in comparison with the case that a plurality of end-face incident type photoelectric conversion cells are merely placed in a plane.Type: ApplicationFiled: September 21, 2007Publication date: April 3, 2008Applicant: TDK CORPORATIONInventors: Masahiro Shinkai, Junji Tanabe, Masahiro Tsuchiya, Hidenori Shinohara, Atsushi Monden
-
Patent number: 7336132Abstract: A wireless communication system has a first operation mode (GSM mode) for amplifying a phase-modulated high frequency signal with a high frequency power amplifier circuit and a second operation mode (EDGE mode) for amplifying a phase and amplitude-modulated high frequency signal with the amplifier circuit. The amplifier circuit has an input of a high frequency signal, with the amplitude and frequency being fixed in both the first and second operation modes, and operates by being controlled for the bias state of each amplifying stage in accordance with the output control signal produced by a control circuit based on the demanded output level (Vapc) and the detected output level (VSNS) so that the amplifier circuit performs signal amplification to meet the demanded output level.Type: GrantFiled: August 16, 2006Date of Patent: February 26, 2008Assignee: Renesas Technology Corp.Inventors: Takayuki Tsutsui, Masahiro Tsuchiya, Tetsuaki Adachi
-
Patent number: 7331198Abstract: A desired temperature distribution is efficiently formed on a glass sheet by a simple structure without lowering heat efficiency within a furnace. A heating furnace conveys a bending mold of a glass sheet and a radiation-heating device is provided in the heating furnace. A first group of a plurality of heating elements are fixed on an inner wall surface of the heating furnace. A second group of a plurality of heating elements are disposed separably from an inner wall surface of the heating furnace.Type: GrantFiled: September 22, 2000Date of Patent: February 19, 2008Assignee: Asahi Glass Company, LimitedInventors: Hiroshi Yamakawa, Junji Tanaka, Toshimi Yajima, Masahiro Tsuchiya, Masaaki Konishi
-
Publication number: 20070296799Abstract: A thermal printer includes a first module having a motor and a thermal head support member to fix a thermal head, the thermal head support member having a fixed blade part working as a blade and an a second module being detachably coupled with the first module, the second module having a platen roller, a movable blade member and a movable blade member movement mechanism to move the movable blade member, wherein the movable blade member is disposed to face the fixed blade part and driving force of the motor is conveyed to the movable blade member movement mechanism, and thereby a cutter part is formed.Type: ApplicationFiled: August 10, 2007Publication date: December 27, 2007Applicant: FUJITSU COMPONENT LIMITEDInventors: Sumio Watanabe, Yukihiro Mori, Masahiro Tsuchiya