Patents by Inventor Tadashi Fukuda

Tadashi Fukuda 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: 20240096189
    Abstract: An object of the present disclosure is to provide a vehicle outside monitoring apparatus capable of appropriately dealing with an attention-requiring state when a specific target object other than the subject vehicle or target person is in the attention-requiring state.
    Type: Application
    Filed: March 30, 2021
    Publication date: March 21, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Mitsuo SHIMOTANI, Tadashi MIYAHARA, Keisaku FUKUDA, Kuniyo IEDA, Takashi IRIE
  • Publication number: 20230400804
    Abstract: An image forming apparatus includes a storage unit configured to store first conversion information for converting a density of an image formed on an image carrier at a process speed into a density at another process speed among a plurality of process speeds; and a control unit configured to form a plurality of first patch images of different densities on the image carrier, with respect to each of the plurality of process speeds, determine respective densities of the plurality of first patch images based on a process speed at the time of formation of each of the plurality of first patch images and the first conversion information, and generate pieces of the tone correction condition that respectively correspond to the plurality of process speeds.
    Type: Application
    Filed: May 31, 2023
    Publication date: December 14, 2023
    Inventors: Tatsuomi MURAYAMA, Tadashi FUKUDA, Akihito YOKOTE
  • Publication number: 20230047447
    Abstract: Provided are a Ni-based heat resistant superalloy for aircraft engine cases excellent in high-temperature characteristic such as tensile characteristics and low-cycle fatigue characteristics in a high-temperature range and also excellent in workability, and an aircraft engine case formed of the same. The Ni-based heat resistant superalloy has composition containing, by mass, Co: 4.0 to 11.0%, Cr: 12.0 to 17.0%, Al: 2.0 to 4.0%, Ti: 2.0 to 4.0%, Al+Ti: 4.6 to 6.7%, Mo: more than 5.5 to 10.0%, W: more than 0 to 4.0%, B: 0.001 to 0.040%, C: 0.02 to 0.06%, Zr: 0 to 0.05%, Mg: 0 to 0.005%, P: 0 to 0.01%, Nb: 0 to 1.0%, Ta: 0 to 1.0%, and Fe: 0 to 2.0%, and the balance of Ni with inevitable impurities, and is suitable for aircraft engine cases.
    Type: Application
    Filed: October 6, 2022
    Publication date: February 16, 2023
    Inventors: Takanori MATSUI, Tadashi FUKUDA
  • Publication number: 20220403493
    Abstract: Provided is a method for producing a Ni- or Ti-based alloy product, the method capable of reliably locally cooling and effectively cooling. The method includes the steps: heating and holding a hot working material of a Ni- or Ti-based alloy after hot forging or hot ring rolling at a solution treatment temperature to obtain a material held in a heated state, and cooling the material held in a heated state to obtain a solution-treated material. The cooling step includes carrying out local cooling by contacting a cooling member with a part of a surface of the material held in a heated state.
    Type: Application
    Filed: November 26, 2020
    Publication date: December 22, 2022
    Inventors: Mari YOSHIHARA, Takuya MURAI, Tadashi FUKUDA, Shoichi TAKAHASHI
  • Publication number: 20220389535
    Abstract: Provided is a method for producing a Ni- or Ti-based alloy product, the method capable of locally increasing the cooling rate and effectively cooling. The method includes the steps: preliminarily processing a hot working material of a Ni- or Ti-based alloy after hot working into a predetermined shape; heating and holding the material at a solution treatment temperature to obtain a material held in a heated state; and cooling the material held in a heated state to obtain a solution-treated material. The cooling step includes placing a flow path-forming member having a space for forming a flow path for a fluid on a surface of the material held in a heated state to form a fluid flow path defined by the surface of the material held in a heated state and an inner surface of the space of the flow path-forming member; and allowing a fluid to flow in the fluid flow path so that the fluid in the flow path locally cools a part of the surface of the material held in a heated state.
    Type: Application
    Filed: November 26, 2020
    Publication date: December 8, 2022
    Inventors: Mari YOSHIHARA, Takuya MURAI, Tadashi FUKUDA, Shoichi TAKAHASHI
  • Patent number: 11519056
    Abstract: Provided are a Ni-based heat resistant superalloy for aircraft engine cases excellent in high-temperature characteristic such as tensile characteristics and low-cycle fatigue characteristics in a high-temperature range and also excellent in workability, and an aircraft engine case formed of the same. The Ni-based heat resistant superalloy has composition containing, by mass, Co: 4.0 to 11.0%, Cr: 12.0 to 17.0%, Al: 2.0 to 4.0%, Ti: 2.0 to 4.0%, Al+Ti: 4.6 to 6.7%, Mo: more than 5.5 to 10.0%, W: more than 0 to 4.0%, B: 0.001 to 0.040%, C: 0.02 to 0.06%, Zr: 0 to 0.05%, Mg: 0 to 0.005%, P: 0 to 0.01%, Nb: 0 to 1.0%, Ta: 0 to 1.0%, and Fe: 0 to 2.0%, and the balance of Ni with inevitable impurities, and is suitable for aircraft engine cases.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: December 6, 2022
    Assignee: HITACHI METALS, LTD.
    Inventors: Takanori Matsui, Tadashi Fukuda
  • Publication number: 20200407825
    Abstract: Provided are a Ni-based heat resistant superalloy for aircraft engine cases excellent in high-temperature characteristic such as tensile characteristics and low-cycle fatigue characteristics in a high-temperature range and also excellent in workability, and an aircraft engine case formed of the same. The Ni-based heat resistant superalloy has composition containing, by mass, Co: 4.0 to 11.0%, Cr: 12.0 to 17.0%, Al: 2.0 to 4.0%, Ti: 2.0 to 4.0%, Al +Ti: 4.6 to 6.7%, Mo: more than 5.5 to 10.0%, W: more than 0 to 4.0%, B: 0.001 to 0.040%, C: 0.02 to 0.06%, Zr: 0 to 0.05%, Mg: 0 to 0.005%, P: 0 to 0.01%, Nb: 0 to 1.0%, Ta: 0 to 1.0%, and Fe: 0 to 2.0%, and the balance of Ni with inevitable impurities, and is suitable for aircraft engine cases.
    Type: Application
    Filed: September 26, 2019
    Publication date: December 31, 2020
    Inventors: Takanori MATSUI, Tadashi FUKUDA
  • Patent number: 10859935
    Abstract: A toner includes toner particle containing at least a strontium titanate particle on the surface of the toner particle, and the toner is a water-washed toner from which strontium titanate particle desorbable by water washing are removed by water washing. The water-washed toner contains the strontium titanate particle having a number average particle diameter of primary particle (D1) of 10 nm or more and 150 nm or less, and when the distribution of an Sr element in the water-washed toner in the depth direction is determined, (i) the Sr element abundance on the outermost surface x satisfying 0.00<x?0.80, and (ii) the difference between x and xp “xp?x” satisfying 0.00<xp?x?0.95, where xp is the maximum peak value (atomic %) of the Sr element abundance in the region from the outermost surface to 50 nm.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: December 8, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takeshi Ohtsu, Tadashi Fukuda, Mikihiro Akasaki, Akinori Miyamoto, Kota Mori, Masami Hano, Takashi Kase, Daisuke Tsujimoto, Ryuichiro Matsuo, Kazuto Hosoi, Yoshihiro Ogawa
  • Patent number: 10838316
    Abstract: An image forming apparatus in which occurrence of an image failure in association with contamination caused by an external additive, such as silica, adhering to a charging unit is suppressed. The image forming apparatus is configured to charge an image bearing member through use of the charging unit, and uses toner having, on a surface thereof, strontium titanate particles and silica particles having predetermined physical properties.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: November 17, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Akinori Miyamoto, Kota Mori, Masami Hano, Takashi Kase, Tadashi Fukuda, Mikihiro Akasaki, Takeshi Ohtsu
  • Patent number: 10747149
    Abstract: An image forming apparatus includes a rotatable intermediate transfer member; a first image forming portion having a first photosensitive member which rotates, a first developing unit, and a first charge eliminating unit; a second image forming portion that is located on a downstream side of the first image forming portion in a rotational direction of the intermediate transfer member, and that has a second photosensitive member which rotates, a second developing unit, and a second charge eliminating unit; a transfer unit; and a switching unit that switches a light amount of the second charge eliminating unit when a usage amount of the second image forming portion reaches a predetermined amount to a value that is greater than a light amount of the first charge eliminating unit when a usage amount of the first image forming portion reaches the predetermined amount.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: August 18, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masami Hano, Takahito Fuse, Tadashi Fukuda, Shota Soda
  • Patent number: 10698332
    Abstract: An image forming apparatus includes a photosensitive member, a first charging roller, a first cleaning member, a second charging roller, and a second cleaning member. The following relationship is satisfied: (X×L0+L1+L2)?(Y×L3+L4)?0 where L0 represents a length of a whole circumference of the first charging roller, L1 represents a length between a first contact area and a first contact position of the first charging roller and the photosensitive member, L3 represents a length of a whole circumference of the second charging roller, L4 represents a length between a second contact area and a second contact position, L2 represents a length between the first contact position and the second contact position, X represents an integer in a range of 0?X?40, and Y represents an integer in a range of 0?Y?40.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: June 30, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tadashi Fukuda, Takahito Fuse, Masami Hano, Shota Soda
  • Patent number: 10656581
    Abstract: An image forming apparatus has a changing portion configured to change, based on a detection result of a temperature sensor, response sensitivity in starting of power supply by a determination portion based on a detection result of a human body detection sensor in a case where a human body approaches the human body detection sensor. The changing portion increases the sensitivity in a case where a temperature detected by the temperature sensor is a second temperature lower than a first temperature than in a case where the temperature detected by the temperature sensor is the first temperature.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: May 19, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takahito Fuse, Masami Hano, Kenichiro Kitajima, Tadashi Fukuda, Shota Soda, Hidetaka Nakahara, Hiroyuki Amano
  • Publication number: 20200096899
    Abstract: An image forming apparatus includes a photosensitive member, a charging roller, an image forming portion. The charging roller includes an electroconductive rubber layer and is 20 ?m or more and 35 ?m or less in ten point average roughness of a surface thereof and 130 ?m or more and 250 ?m or less in average interval of surface unevenness.
    Type: Application
    Filed: September 24, 2019
    Publication date: March 26, 2020
    Inventors: Michihiro Yoshida, Masahiro Makino, Tadashi Fukuda, Mikihiro Akasaki, Keisuke Kinai
  • Publication number: 20200096893
    Abstract: An image forming apparatus includes a photosensitive member and a charge roller. The photosensitive member comprises a base body, and a photosensitive layer which is a monolayer formed on the base body and comprises a charge generating agent, a charge transport agent and a binder resin. The charge roller configured to contact the photosensitive member and charge the photosensitive member by application of only a DC voltage. The charge roller comprises a conductive rubber layer, and a ten-point average roughness of a surface of the charge roller is 0.9 ?m or more and 8.5 ?m or less.
    Type: Application
    Filed: September 4, 2019
    Publication date: March 26, 2020
    Inventors: Michihiro Yoshida, Tadashi Fukuda, Masahiro Makino, Mikihiro Akasaki, Keisuke Kinai
  • Publication number: 20200073267
    Abstract: An image forming apparatus in which occurrence of an image failure in association with contamination caused by an external additive, such as silica, adhering to a charging unit is suppressed. The image forming apparatus is configured to charge an image bearing member through use of the charging unit, and uses toner having, on a surface thereof, strontium titanate particles and silica particles having predetermined physical properties.
    Type: Application
    Filed: August 23, 2019
    Publication date: March 5, 2020
    Inventors: Akinori Miyamoto, Kota Mori, Masami Hano, Takashi Kase, Tadashi Fukuda, Mikihiro Akasaki, Takeshi Ohtsu
  • Publication number: 20200073266
    Abstract: A toner includes toner particle containing at least a strontium titanate particle on the surface of the toner particle, and the toner is a water-washed toner from which strontium titanate particle desorbable by water washing are removed by water washing. The water-washed toner contains the strontium titanate particle having a number average particle diameter of primary particle (D1) of 10 nm or more and 150 nm or less, and when the distribution of an Sr element in the water-washed toner in the depth direction is determined, (i) the Sr element abundance on the outermost surface x satisfying 0.00<x?0.80, and (ii) the difference between x and xp “xp?x” satisfying 0.00<xp?x?0.95, where xp is the maximum peak value (atomic %) of the Sr element abundance in the region from the outermost surface to 50 nm.
    Type: Application
    Filed: August 26, 2019
    Publication date: March 5, 2020
    Inventors: Takeshi Ohtsu, Tadashi Fukuda, Mikihiro Akasaki, Akinori Miyamoto, Kota Mori, Masami Hano, Takashi Kase, Daisuke Tsujimoto, Ryuichiro Matsuo, Kazuto Hosoi, Yoshihiro Ogawa
  • Publication number: 20200057401
    Abstract: An image forming apparatus includes a photosensitive member, a first charging roller, a first cleaning member, a second charging roller, and a second cleaning member. The relationship is satisfied (X×L0+L1+L2)?(Y×L3+L4)?0 where L0 represents a length of a whole circumference of the first charging roller, L1 represents a length between the first contact area and the first contact position of the first charging roller and the photosensitive member, L3 represents a length of a whole circumference of the second charging roller, L4 represents a length between the second contact area and the second contact position, L2 represents a length between the first contact position and the second contact position, X represents an integer in a range of 0?X?40, and Y represents an integer in a range of 0?Y?40.
    Type: Application
    Filed: August 9, 2019
    Publication date: February 20, 2020
    Inventors: Tadashi Fukuda, Takahito Fuse, Masami Hano, Shota Soda
  • Publication number: 20190171134
    Abstract: An image forming apparatus includes: a rotatable intermediate transfer member; a first image forming portion having a first photosensitive member which rotates, a first developing unit, and a first charge eliminating unit; a second image forming portion that is located on a downstream side relative to the first image forming portion in a rotational direction of the intermediate transfer member, and that has a second photosensitive member which rotates, a second developing unit, and a second charge eliminating unit; a transfer unit; and a switching unit that switches a light amount of the second charge eliminating unit when a usage amount of the second image forming portion reaches a predetermined amount to a value that is greater than a light amount of the first charge eliminating unit when a usage amount of the first image forming portion reaches the predetermined amount.
    Type: Application
    Filed: November 30, 2018
    Publication date: June 6, 2019
    Inventors: Masami Hano, Takahito Fuse, Tadashi Fukuda, Shota Soda
  • Patent number: 10248046
    Abstract: An image forming apparatus comprises a controller, an adjustment unit configured to adjust an image forming condition based on an adjustment condition corresponding to a profile of a toner adhesion amount in a sheet conveying direction, and an image forming unit configured to form an image on a sheet with the adjusted image forming condition while conveying the sheet.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: April 2, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jiro Shirakata, Tadashi Fukuda
  • Patent number: 10208364
    Abstract: A Ni-based alloy comprises nitrides, of which an estimated largest size is an area-equivalent diameter of 12 ?m to 25 ?m, the estimated largest size of the nitrides being determined by calculating an area-equivalent diameter D which is defined as D=A1/2 in relation to an area A of a nitride with a largest size among nitrides present in a measurement field of view area S0 of an observation of the Ni-based alloy, repeatedly performing this operation for n times corresponding to a measurement field of view number n to acquire n pieces of data of the area-equivalent diameter D, arranging the pieces of data of area-equivalent diameter D in ascending order into D1, D2, . . .
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: February 19, 2019
    Assignee: Hitachi Metals, Ltd.
    Inventors: Ikuo Okada, Masaki Taneike, Hidetaka Oguma, Yoshitaka Uemura, Daisuke Yoshida, Yoshiyuki Inoue, Masato Itoh, Kenichi Yaguchi, Tadashi Fukuda, Takanori Matsui