Patents by Inventor Takahiro Imai

Takahiro Imai 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: 20190061179
    Abstract: Emergency stop pressure sensors 17 are installed on both side surfaces of a movable link 11 of a robot arm 14 of an assembly robot. When a worker S unintentionally walks in a swing range Ra of the robot arm 14 and contacts the emergency stop pressure sensor 17, a detection signal is transmitted to a control unit 19, and the control unit 19 shuts power transmission to a driving source swinging the robot arm. The emergency stop pressure sensor 17 has a first electrode and a second electrode constituting a pair of electrodes and an intermediate layer formed of rubber or a rubber composition, which is disposed between the pair of electrodes, the intermediate layer generating power upon deformation caused by contact with a contacted body (the worker). A side of the intermediate layer in a laminate direction undergoes surface modification treatment and/or inactivation treatment.
    Type: Application
    Filed: December 14, 2016
    Publication date: February 28, 2019
    Inventors: Junichiro NATORI, Tsuneaki KONDOH, Tomoaki SUGAWARA, Mayuka ARAUMI, Takahiro IMAI, Hideyuki MIYAZAWA, Mizuki OTAGIRI
  • Publication number: 20190030732
    Abstract: A gripping device 18 is provided at the front end of an arm of an assembly robot 2. The gripping device 18 includes a pair of grippers 20 and 22 capable of opening and closing. The side configured to come into contact with a part 4, of each gripper 20, 22 includes a pressure-sensitive sensor 24. The pressure-sensitive sensor 24 includes a first electrode and a second electrode serving as a pair of electrodes and an intermediate layer formed of rubber or a rubber composition between the pair of electrodes. The intermediate layer is configured to generate electricity when deformed by contact with an object (part 4). The side configured to come into contact with the object, of the intermediate layer is subjected to a surface modification treatment and has a higher hardness than the opposite side.
    Type: Application
    Filed: December 14, 2016
    Publication date: January 31, 2019
    Inventors: Tsuneaki KONDOH, Tomoaki SUGAWARA, Yuko ARIZUMI, Mayuka ARAUMI, Mizuki OTAGIRI, Junichiro NATORI, Megumi KITAMURA, Takahiro IMAI, Hideyuki MIYAZAWA, Makito NAKASHIMA
  • Publication number: 20180314271
    Abstract: A flow rate signal correction method applicable to a pressure-type flow rate control device that controls a flow rate by controlling pressure existing upstream of a restriction part includes a step of generating a primary signal indicating the flow rate in accordance with an output of a pressure sensor provided upstream of the restriction part and a step of generating a secondary signal as a corrected signal of the primary signal such that the current value of the primary signal and a value including information regarding one or a plurality of past values of the primary signal are used to derive a current value corrected according to a predetermined relational expression. The secondary signal is output as a flow rate signal during a stable flow rate period, and the secondary signal is not output as a flow rate signal during a transient change period.
    Type: Application
    Filed: October 24, 2016
    Publication date: November 1, 2018
    Applicant: FUJIKIN INCORPORATED
    Inventors: Katsuyuki SUGITA, Nobukazu IKEDA, Kouji NISHINO, Kaoru HIRATA, Masahiko TAKIMOTO, Masayoshi KAWASHIMA, Takahiro IMAI
  • Publication number: 20180304848
    Abstract: A gas generator includes a housing, a partition member which divides a space in the housing into a combustion chamber where a gas generating agent is accommodated and a filter chamber where a filter is accommodated, and a sealed container which externally seals the gas generating agent. The filter has a hollow portion which reaches an axial end surface located on a side of the combustion chamber. The sealed container is made of a member relatively low in mechanical strength so as to burst or melt as a result of burning of the gas generating agent. The partition member is made of a member relatively high in mechanical strength such that only a portion opposed to the hollow portion bursts as a result of burning of the gas generating agent to provide a communication hole which allows communication between the combustion chamber and the filter chamber with each other.
    Type: Application
    Filed: October 21, 2016
    Publication date: October 25, 2018
    Applicant: NIPPON KAYAKU KABUSHIKI KAISHA
    Inventor: Takahiro IMAI
  • Patent number: 10081001
    Abstract: An object of the present invention is to provide a high-performance polymer dispersant that can be applied to cellulose being a hydrophilic substance, and another object of the present invention is to provide a technology for practical application of obtaining a cellulose-dispersed resin composition that realizes stable dispersion of cellulose in a simpler manner and in an environmentally conscious manner that never uses a large amount of organic solvents when the polymer dispersant for cellulose is applied to cellulose and disperses the cellulose in a thermoplastic resin.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: September 25, 2018
    Assignees: DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD., KYOTO UNIVERSITY
    Inventors: Takahiro Imai, Taiyo Aoyagi, Hiroyuki Shimanaka, Yoshinobu Tsujii, Keita Sakakibara, Atsushi Goto
  • Patent number: 10077357
    Abstract: An object of the present invention is to provide a technology of dispersing cellulose readily in a hydrophobic substance such as a resin by treating cellulose being a hydrophilic substance in a system that contains water as a main medium with a polymer dispersant, which has been developed for dispersing a fine and hydrophobic substance such as a pigment, in a simple and efficient manner without conducting surface modification of nanocellulose or other treatments.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: September 18, 2018
    Assignees: DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD., KYOTO UNIVERSITY
    Inventors: Takahiro Imai, Taiyo Aoyagi, Hiroyuki Shimanaka, Yoshinobu Tsujii, Keita Sakakibara, Atsushi Goto
  • Publication number: 20180156639
    Abstract: A sensor includes an electrode, an insulator, a pressure receiver, and a pressure imparting unit. The insulator is disposed at a position facing the electrode and away from the electrode. The pressure receiver is disposed on a surface of the insulator on a side opposite to the electrode. The pressure imparting unit presses a part of the insulator toward the electrode at a position different from the pressure receiver to contact the insulator with the electrode. The insulator generates power by contact charging or separation charging with respect to the electrode, to output the power as a signal.
    Type: Application
    Filed: November 30, 2017
    Publication date: June 7, 2018
    Inventors: Hideyuki MIYAZAWA, Tsuneaki KONDOH, Tomoaki SUGAWARA, Yuko ARIZUMI, Junichiro NATORI, Mayuka ARAUMI, Takahiro IMAI, Makito NAKASHIMA, Kimio AOKI, Mizuki OTAGIRI, Megumi KITAMURA, Yuki HOSHIKAWA
  • Publication number: 20180149685
    Abstract: A sensor includes a first detector and a second detector. The first detector detects an electromagnetic noise varying according to a distance between the sensor and a human body and changes an output according to the electromagnetic noise detected. The second detector detects a detection load applied to a detection surface of the sensor and changes an output according to the detection load.
    Type: Application
    Filed: November 28, 2017
    Publication date: May 31, 2018
    Inventors: Makito NAKASHIMA, Tsuneaki KONDOH, Tomoaki SUGAWARA, Junichiro NATORI, Yuko ARIZUMI, Mayuka ARAUMI, Hideyuki MIYAZAWA, Kimio AOKI, Takahiro IMAI, Mizuki OTAGIRI, Megumi KITAMURA, Yuki HOSHIKAWA
  • Publication number: 20180145244
    Abstract: A sensor includes a plurality of elements and an insulating layer. The plurality of elements is deformable to generate power. The insulating layer is interposed between the plurality of elements. Each of the plurality of elements includes a pair of electrodes and an intermediate layer. The intermediate layer is disposed between the pair of electrodes and formed of one of a rubber and a rubber composition.
    Type: Application
    Filed: November 15, 2017
    Publication date: May 24, 2018
    Inventors: Mizuki OTAGIRI, Tsuneaki KONDOH, Yuko ARIZUMI, Tomoaki SUGAWARA, Junichiro NATORI, Mayuka ARAUMI, Hideyuki MIYAZAWA, Makito NAKASHIMA, Kimio AOKI, Takahiro IMAI, Megumi KITAMURA, Yuki HOSHIKAWA
  • Patent number: 9960714
    Abstract: A power generating element is provided. The power generating element includes a piezoelectric body and a pair of electrodes. The piezoelectric body is expandable and contractible in response to a movement of a moving body. The piezoelectric body undergoes a deformation when expanding or contracting and generates power when undergoing the deformation. The pair of electrodes extracts the power generated as the piezoelectric body undergoes the deformation.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: May 1, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Tsuneaki Kondoh, Tomoaki Sugawara, Mayuka Araumi, Yuko Arizumi, Mizuki Otagiri, Junichiro Natori, Megumi Kitamura, Takahiro Imai, Hideyuki Miyazawa, Makito Nakashima
  • Patent number: 9902364
    Abstract: A gas generator includes a housing and a partition portion dividing a space in the housing into a combustion chamber accommodating a gas generating agent and a filter chamber accommodating a filter. The partition portion includes a first region which opens at the time of activation by being located to be opposed to a hollow portion of the filter and an annular second region which does not open even at the time of activation by being located to be opposed to a portion of an axial end surface of the filter except for the hollow portion. The second region is provided with a large-thickness portion constructed to be greater in thickness than the first region and opposed to an outer edge portion of the axial end surface of the filter, and the large-thickness portion is constructed to gradually be greater in thickness from an inner circumferential end portion toward an outer circumferential end portion.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: February 27, 2018
    Assignee: NIPPON KAYAKU KABUSHIKI KAISHA
    Inventors: Takahiro Imai, Dairi Kubo
  • Publication number: 20180054141
    Abstract: To provide an element including: a first electrode; an intermediate layer; and a second electrode, the first electrode, the intermediate layer, and the second electrode being disposed in this order, the intermediate layer including an organic polymer material, where a molecular structure of the organic polymer material includes a structure represented by the following formula (1) where R1 is a carbonyl group, an ether group, a thioether group, or organopolysiloxane, and R1 may form a cyclic structure (an imide group) with R2; and R2 to R6 are organic groups that may be identical or different, where each of the organic groups may have a valency of 2 or more and may form another structure:
    Type: Application
    Filed: February 3, 2016
    Publication date: February 22, 2018
    Inventors: Junichiro NATORI, Tsuneaki KONDOH, Tomoaki SUGAWARA, Yuko ARIZUMI, Takahiro IMAI, Mizuki OTAGIRI
  • Patent number: 9893652
    Abstract: An electricity-generating element unit including a plurality of electricity-generating elements, each of the plurality of electricity-generating elements including a first electrode, an intermediate layer, and a second electrode disposed with the intermediate layer being between the first electrode and the second electrode, and a coupling unit coupling the plurality of electricity-generating elements to each other, wherein when an external force is applied to at least one of the plurality of electricity-generating elements to bring the first electrode and the second electrode of the at least one of the plurality of electricity-generating elements close to each other, a distance between the first electrode and the second electrode of the electricity-generating element or each of the electricity-generating elements to which an external force is not applied is increased by the coupling unit.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: February 13, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Mizuki Otagiri, Tsuneaki Kondoh, Tomoaki Sugawara, Yuko Arizumi, Junichiro Natori, Takahiro Imai
  • Publication number: 20180013057
    Abstract: An element including: a first electrode; an intermediate layer made of a silicone rubber composition containing a silicone rubber; and a second electrode, where the first electrode, the intermediate layer, and the second electrode are disposed in this order, wherein a peak intensity ratio (1095±5 cm?1/1025±5 cm?1) of an infrared absorption spectrum of the intermediate layer varies along a vertical direction relative to a surface of the first electrode, and to a surface of the second electrode.
    Type: Application
    Filed: January 5, 2016
    Publication date: January 11, 2018
    Inventors: Yuko ARIZUMI, Tsuneaki KONDOH, Mizuki OTAGIRI, Junichiro NATORI, Tomoaki SUGAWARA, Takahiro IMAI
  • Patent number: 9758890
    Abstract: PROBLEMS TO BE SOLVED: To provide a process for roughening both sides of a copper plate by forming a protrusion with a fine bump shape on the both sides of the copper plate, and then to provide a process for a deterioration of an electroplating solution for plating copper to become hard to progress therein. MEANS FOR SOLVING THE PROBLEMS: First of all, there is designed to be arranged electrodes (3, 3) as a similar pole for therebetween to be opposed to each other in an electroplating copper solution 2, and then to be arranged a copper plate 4 at therebetween. And then at first there becomes to be performed an anodic treatment for generating a copper fine particles on both surfaces of the copper plate 4, by performing an electrolytic process with the copper plate 4 as a positive electrode and the electrodes 3 as negative electrodes.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: September 12, 2017
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Hajime Watanabe, Sadao Ishihama, Kiyoteru Yamamoto, Takahiro Imai, Toshihiro Oyoshi
  • Patent number: 9745392
    Abstract: Provided is a method for producing water-absorbent resin particles suitable for use in absorbent article and the like, the water-absorbent resin particles having better water-absorbent performance, a suitable particle size, and a narrow particle-size distribution. A method for producing water-absorbent resin particles by reversed-phase suspension polymerization of a water-soluble ethylenic unsaturated monomer in a carrier fluid, wherein the method for producing water-absorbent resin particles comprises conducting the reversed-phase suspension polymerization reaction in the presence of an organic acid monoglyceride.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: August 29, 2017
    Assignee: SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Kenji Tanimura, Ryusuke Umeza, Hidenobu Kakimoto, Hideki Matsushita, Takahiro Imai
  • Publication number: 20170233346
    Abstract: A crystal form of 2-(3,5-dimethyl-1H-pyrazol-1-yl)-5-methylphenol which is stable and has high purity for preservation, industrial manufacturing, and circulation, and process for providing the same by using a boron compound.
    Type: Application
    Filed: August 12, 2015
    Publication date: August 17, 2017
    Applicant: MEIJI SEIKA PHARMA CO., LTD.
    Inventors: Toshiro SASAKI, Takahiro IMAI, Kenichiro MORI, Makoto OHYAMA, Takashi WATANABE
  • Publication number: 20170214338
    Abstract: A power generating element is provided. The power generating element includes a pair of electrodes, an intermediate layer being insulating, and a substrate being flexible. The intermediate layer is disposed between the electrodes. The substrate is configured to support the electrodes and the intermediate layer. When the substrate undergoes a deformation, the intermediate layer is separated from or pressed against one of the electrodes.
    Type: Application
    Filed: January 9, 2017
    Publication date: July 27, 2017
    Inventors: Mizuki OTAGIRI, Tsuneaki KONDOH, Tomoaki SUGAWARA, Yuko ARIZUMI, Junichiro NATORI, Mayuka ARAUMI, Takahiro IMAI, Hideyuki MIYAZAWA, Makito NAKASHIMA, Megumi KITAMURA
  • Publication number: 20170210333
    Abstract: A gas generator includes a housing and a partition portion dividing a space in the housing into a combustion chamber accommodating a gas generating agent and a filter chamber accommodating a filter. The partition portion includes a first region which opens at the time of activation by being located to be opposed to a hollow portion of the filter and an annular second region which does not open even at the time of activation by being located to be opposed to a portion of an axial end surface of the filter except for the hollow portion. The second region is provided with a large-thickness portion constructed to be greater in thickness than the first region and opposed to an outer edge portion of the axial end surface of the filter, and the large-thickness portion is constructed to gradually be greater in thickness from an inner circumferential end portion toward an outer circumferential end portion.
    Type: Application
    Filed: July 23, 2015
    Publication date: July 27, 2017
    Applicant: NIPPON KAYAKU KABUSHIKI KAISHA
    Inventors: Takahiro IMAI, Dairi KUBO
  • Publication number: 20170207729
    Abstract: A power generating element is provided. The power generating element includes a piezoelectric body and a pair of electrodes. The piezoelectric body is expandable and contractible in response to a movement of a moving body. The piezoelectric body undergoes a deformation when expanding or contracting and generates power when undergoing the deformation. The pair of electrodes extracts the power generated as the piezoelectric body undergoes the deformation.
    Type: Application
    Filed: January 3, 2017
    Publication date: July 20, 2017
    Inventors: Tsuneaki KONDOH, Tomoaki SUGAWARA, Mayuka ARAUMI, Yuko ARIZUMI, Mizuki OTAGIRI, Junichiro NATORI, Megumi KITAMURA, Takahiro IMAI, Hideyuki MIYAZAWA, Makito NAKASHIMA