Patents by Inventor Hisashi Yoshida
Hisashi Yoshida 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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Publication number: 20040207781Abstract: The present invention provides a liquid crystal display device which exhibits improved color reproducibility, high definition and a high numerical aperture by minimizing a change of a total area of color filter non-forming regions even when a position of a color filter is displaced. A color filter forming region and the color filter non-forming regions are formed within a lighting region which is visible to a viewer in the inside of one pixel.Type: ApplicationFiled: March 3, 2004Publication date: October 21, 2004Inventor: Hisashi Yoshida
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Patent number: 6774382Abstract: A fluorescent transilluminator according to the present invention comprises an ultraviolet source and a case housing the ultraviolet source. The ultraviolet source emits only ultraviolet rays of a sharp line spectrum. In the case, a transmission window, which passes ultraviolet rays toward an object to be irradiated, is formed as an opening thereof. In the transmission window, a visible light-cutting filter, which transmits ultraviolet rays and cuts visible light, is not installed. The ultraviolet source has particularly a fluorescent body, which is activated by gadolinium and emits ultraviolet rays, and an excitation source, which excites the fluorescent body through xenon discharge to make the fluorescent body fluoresce; and emits an emission of a spectrum having a peak emission wavelength at 313 nm with 5 nm or shorter half width.Type: GrantFiled: December 13, 2002Date of Patent: August 10, 2004Assignee: NEC CorporationInventor: Hisashi Yoshida
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Patent number: 6762559Abstract: A high-pressure mercury discharge lamp comprises a light-transmitting discharge vessel having a region surrounding a discharge space and seal portion, a spaced apart electrodes disposed in the discharge vessel and defining a discharge path, and a filling contained in the discharge vessel including mercury, halogen and lithium (Li). Components of the filling are selected such that a ratio of relative spectral energies B/A is within a range 0.15 to 0.45; wherein A represents the relative spectral energy of mercury (Hg) within a wavelenth range of 402.5 nm to 407.5 nm, and B represents the rlative spectral energy of lithium (Li) within a wavelength range of 667.5 nm to 672.5 nm.Type: GrantFiled: December 18, 2000Date of Patent: July 13, 2004Assignee: Toshiba Lighting & Technology CorporationInventors: Satoko Ishikawa, Ichiro Tanaka, Hiromichi Kawashima, Hisashi Yoshida
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Publication number: 20040116618Abstract: The polycarbonate resin of the present invention has an improved refractive index, balance of dispersion, photoelastic constant, and so on while still maintaining the characteristics of polycarbonate, such as excellent impact resistance and heat resistance, and is characterized by comprising an aromatic-aliphatic copolymerized polycarbonate resin (A) and an aromatic polycarbonate resin (B) having a structural unit represented by the following formula (1): 1Type: ApplicationFiled: October 9, 2003Publication date: June 17, 2004Inventors: Satoshi Nagai, Makoto Sasaki, Noritaka Murase, Hisashi Yoshida, Tomoyuki Hashimoto
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Patent number: 6749118Abstract: An automatic ticket gate apparatus comprising a box defining the passage for ticket checking and a communicating face inclined to the horizontal to the side of passage, which is provided on the top of box and is provided with a wireless communicator communicating with a wireless ticket, and a ticket checking unit, which performs the ticket checking process basing upon the result of communication with a wireless ticket through the wireless communicator.Type: GrantFiled: February 28, 2001Date of Patent: June 15, 2004Assignee: Kabushiki Kaisha ToshibaInventors: Takashi Kobayashi, Yoshinori Muraoka, Hisashi Yoshida
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Patent number: 6731057Abstract: A phosphor represented by the formula (1−x)CaO.EU(O).yMgO.nSiO2, wherein x, y and n represent number of moles, respectively, provides increased initial luminous intensity and exhibits superior sustainability of luminous intensity over long periods of use in a fluorescent lamp including the above phosphor.Type: GrantFiled: March 21, 2002Date of Patent: May 4, 2004Assignee: NEC CorporationInventors: Hisashi Yoshida, Maki Minamoto, Kazuya Ito, Yosuke Nishikage
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Publication number: 20030116723Abstract: A fluorescent transilluminator according to the present invention comprises an ultraviolet source and a case housing the ultraviolet source. The ultraviolet source emits only ultraviolet rays of a sharp line spectrum. In the case, a transmission window, which passes ultraviolet rays toward an object to be irradiated, is formed as an opening thereof. In the transmission window, a visible light-cutting filter, which transmits ultraviolet rays and cuts visible light, is not installed. The ultraviolet source has particularly a fluorescent body, which is activated by gadolinium and emits ultraviolet rays, and an excitation source, which excites the fluorescent body through xenon discharge to make the fluorescent body fluoresce; and emits an emission of a spectrum having a peak emission wavelength at 313 nm with 5 nm or shorter half width.Type: ApplicationFiled: December 13, 2002Publication date: June 26, 2003Inventor: Hisashi Yoshida
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Patent number: 6556126Abstract: A wireless recording medium has a RAM to store gate data, a transmitting portion to transmit the gate data stored in the RAM to an automatic gate apparatus, a receiving portion to receive data showing the process contents from the automatic gate apparatus, and a displaying portion to display the using contents of the automatic gate apparatus based on the data showing the process contents received by the receiving portion.Type: GrantFiled: February 29, 2000Date of Patent: April 29, 2003Assignee: Kabushiki Kaisha ToshibaInventors: Katsuo Imazuka, Hisashi Yoshida
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Publication number: 20020190634Abstract: A phosphor represented by the formula (1−x)CaO·xEu(O)·yMgO·nSiO2, wherein x, y and n represent number of moles, respectively. A fluorescent lamp comprising the above phosphor. The phosphor has stronger luminous intensity and less luminous intensity reduction after a long lighting hours.Type: ApplicationFiled: March 21, 2002Publication date: December 19, 2002Inventors: Hisashi Yoshida, Maki Minamoto, Kazuya Ito, Yosuke Nishikage
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Publication number: 20020176039Abstract: The present invention provides a reflective-type liquid crystal display device with a reflection electrode thereof formed on a resin binder layer wherein a number of fine particles are mingled in the resin binder layer and protrude their upper portions from the resin binder layer to make an upper surface of the resin binder layer rough, and improves reflection property thereof while simplifying a structure and manufacturing process therefor.Type: ApplicationFiled: May 15, 2002Publication date: November 28, 2002Applicant: Hitachi, Ltd.Inventors: Kazumi Kanesaka, Tomoaki Tsuboka, Hisashi Yoshida, Masato Sakurai
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Patent number: 6481720Abstract: The invention provides a stern tube sealing apparatus which prevents an abrasion by cooling and lubricating a sliding contact surface of a first seal ring, prevents a foreign substance and a seawater from entering so as to further improve a durability of a seal ring and a liner, intends to make the sealing apparatus compact and reduce a cost by using no pressurizing apparatus, and has a high reliability of a seal system.Type: GrantFiled: August 21, 2000Date of Patent: November 19, 2002Assignee: Japan Marine Technologies Ltd.Inventors: Hisashi Yoshida, Minoru Takayasu
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Publication number: 20020027412Abstract: A fluoride-based fluorescent material designated by a composition formula of MFn:R, wherein M is at least one element selected from the group consisting of rare earth elements, Al and Bi, alkaline earth metals, and alkaline metals, and R is a rare-earth-based activator including at least either Tb or Tb and Ce and n=1, 2 or 3. The fluoride-based fluorescent materials efficiently emit white-light of a luminescent peak at 543 nm.Type: ApplicationFiled: July 11, 2001Publication date: March 7, 2002Applicant: NEC CORPORATIONInventors: Hisashi Yoshida, Maki Minamoto, Masato Hayashi, Shiro Sakuragi, Takeshi Hirai
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Publication number: 20020017857Abstract: A flat-type light-emitting device having an approximately even distribution of the light intensity is provided without luminance degradation. This device comprises (a) an envelope having an inner space and an inner surface; the inner space being filled with a discharge medium; (b) a phosphor layer formed in the inner space of the envelope; (c) a first electrode formed on the inner surface of the envelope; the first electrode including linear parts; each of the linear parts having branches apart from each other at a first gap; and (d) a second electrode formed on the inner surface of the envelope adjacent to the first electrode; the second electrode including linear parts; each of the linear parts having branches apart from each other at a second gap. The linear parts of the first electrode and the linear parts of the second electrode are arranged alternately in the direction.Type: ApplicationFiled: July 26, 2001Publication date: February 14, 2002Applicant: NEC CorporationInventors: Masafumi Hashimoto, Maki Minamoto, Hisashi Yoshida
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Publication number: 20010017585Abstract: An automatic ticket gate apparatus comprising a box defining the passage for ticket checking and a communicating face inclined to the horizontal to the side of passage, which is provided on the top of box and is provided with a wireless communicator communicating with a wireless ticket, and a ticket checking unit, which performs the ticket checking process basing upon the result of communication with a wireless ticket through the wireless communicator.Type: ApplicationFiled: February 28, 2001Publication date: August 30, 2001Inventors: Takashi Kobayashi, Yoshinori Muraoka, Hisashi Yoshida
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Patent number: 6229598Abstract: A distance measuring apparatus has a light sending unit for sending pulsed light into a ranging optical path, a photodetective element for receiving pulse light reflected, and a signal processing section for measuring a period between The time of sending and the time of reception, the signal processing section determines whether to apply a first state in which one reflected pulsed beam is detected in response to the sending of the pulsed light or a second state in which two reflected pulsed beams are detected in response to the sending of the pulsed light. The signal processing section measures a period from the time of sending to reception of the first reflected pulsed beam in the first state, while the signal processing section measures a period from the time of sending to reception of the second reflected pulsed beam in the second state.Type: GrantFiled: January 20, 2000Date of Patent: May 8, 2001Assignee: Nikon CorporationInventor: Hisashi Yoshida
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Patent number: 6226076Abstract: The present invention relates to a distance measuring apparatus and method having a structure enabling highly accurate distance measurement. In particular, the distance measuring apparatus according to the present invention comprises at least a measurement system for detecting, of measurement pulse light emitted into a measurement optical path toward a target, information concerning a reflected beam from the target. In order to prevent undesirable reflected beams, which form erroneous information, among reflected beams of the measurement pulse light from being received, an operation for detecting reflected beams of the measurement pulse light is inhibited for a predetermined period of time from the emitting time at which the measurement pulse light is emitted.Type: GrantFiled: March 3, 2000Date of Patent: May 1, 2001Assignee: Nikon CorporationInventor: Hisashi Yoshida
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Patent number: 6190104Abstract: A method and apparatus for conveying a treatment object whereby a drive unit for driving a treatment object conveyor robot is deployed inside a vacuum chamber. The robot comprises a conveyor arm and a drive unit. The conveyor arm is accommodated outside an airtight vessel and the drive unit is accommodated inside the airtight vessel to avoid damage to the drive unit. In order to raise and lower the robot inside the chamber, an elevator mechanism, deployed outside the chamber, advances and retracts a shaft that is inserted in an airtight manner into the chamber. The airtight structure is secured by O rings provided where a bellows surrounds the shaft and connects to the chamber and the elevator mechanism. The shaft, inserted inside the chamber, is linked to the airtight vessel that accommodates the drive unit of the robot. The airtight vessel communicates to the outside via a hollow portion in the shaft and the interior thereof is always kept at atmospheric pressure.Type: GrantFiled: June 7, 1999Date of Patent: February 20, 2001Assignee: Kokusai Electric Co., Ltd.Inventors: Kazuhito Ikeda, Shinichiro Watahiki, Hisashi Yoshida, Yukinori Aburatani
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Patent number: 6165535Abstract: The present invention relates to wheat starch which reaches the peak viscosity at 75 to 85.degree. C. and whose amylose content is 0.8% or more and 2.5% or less, as well as to foods containing the same. Wheat flour which is of glutinous properties and excellent in viscosity stability is provided.Type: GrantFiled: March 11, 1998Date of Patent: December 26, 2000Assignee: Director General of National Agriculture Research Center, Ministry of Agriculture, Forestry and FisheriesInventors: Isao Yamaguchi, Chikako Otobe, Tomohiko Ushiyama, Takashi Yanagisawa, Hidefumi Seko, Yoichi Amano, Hisashi Yoshida
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Patent number: 6143083Abstract: A substrate processing apparatus comprises a substrate transfer chamber; a substrate processing chamber disposed on a first side wall of the substrate transfer chamber; an intermediate substrate holding chamber disposed on a second side wall of the substrate transfer chamber; a first substrate holder disposed within the intermediate substrate holding chamber; a second substrate holder disposed within the substrate processing chamber; a first substrate transfer robot, disposed within the substrate transfer chamber, for transferring the substrate between the substrate processing chamber and the intermediate substrate holding chamber; a first gate valve disposed between the substrate processing chamber and the substrate transfer chamber; a second gate valve disposed between the substrate transfer chamber and the intermediate substrate holding chamber; an atmospheric pressure section located opposite to the substrate transfer chamber with respect to the intermediate substrate holding chamber; a third valve disposType: GrantFiled: December 2, 1999Date of Patent: November 7, 2000Assignee: Kokusai Electric Co., Ltd.Inventors: Shuji Yonemitsu, Toshikazu Karino, Hisashi Yoshida, Shinichiro Watahiki, Yuji Yoshida, Hideo Shimura, Takeshi Sugimoto, Yukinori Aburatani, Kazuhito Ikeda
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Patent number: 6133992Abstract: A distance measurement apparatus for measuring distance to the target by measuring a time elapsed from the emission of pulsed light to the target until the receiving thereof. This apparatus comprising a light-emitting section, a light-receiving section, a delay circuit for delaying at least one of generation of the trigger signal with respect to a measurement start signal and the outputting of the measurement stop signal with respect to the reflected pulsed light and outputting thus delayed signal, a reference clock section, time measuring sections consisting of a start-side and stop-side fractional time signal measurement sections and a counter section, and a distance measurement section for determining, based thus measured items, the distance to the target according to the time from the emission of the pulsed light to the receiving thereof.Type: GrantFiled: January 28, 1999Date of Patent: October 17, 2000Assignee: Nikon CorporationInventors: Tomohiro Tanaka, Hisashi Yoshida