Patents by Inventor Toshiaki Nagasawa

Toshiaki Nagasawa 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).

  • Patent number: 11078378
    Abstract: To provide polyimide films that contain polyimide good in solubility in solvent and excel lent in workability and that are colorless, transparent and excellent in toughness, polyimide varnishes, and products and layered products using the polyimide film, the polyimide film is characterized by containing polyimide expressed by following general formula (1), and containing as A in the general formula (1), a structure expressed by following general formula (A-1), for example, structure expressed by following general formula (A-5). Herein, in the general formula (1), A represents a bivalent organic group, B represents a tetravalent organic group, and n is 2 or more.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: August 3, 2021
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Satoshi Kato, Toshiaki Nagasawa
  • Publication number: 20210130649
    Abstract: The purpose of the present invention is to provide a, polyimide film having high transparency and improved bending resistance against multiple times of bending, and a varnish capable of providing such a polyimide film. The varnish according to the present invention contains a polymer (?) and a solvent (?). The polymer (?) is polyimide or a polyimide precursor. The varnish further contains a typical metal element having an atomic weight of 26-201 except alkali metals and alkaline earth metals, or at least one metal element among transition metal elements having an atomic weight of 26-201 or less. At least one of the metal elements contained in the varnish is present in an amount of 0.05-500 ppm relative to the polymer (?).
    Type: Application
    Filed: July 27, 2018
    Publication date: May 6, 2021
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Satoshi KATO, Toshiaki NAGASAWA
  • Publication number: 20180086939
    Abstract: To provide polyimide films that contain polyimide good in solubility in solvent and excel lent in workability and that are colorless, transparent and excellent in toughness, polyimide varnishes, and products and layered products using the polyimide film, the polyimide film is characterized by containing polyimide expressed by following general formula (1), and containing as A in the general formula (1), a structure expressed by following general formula (A-1), for example, structure expressed by following general formula (A-5). Herein, in the general formula (1), A represents a bivalent organic group, B represents a tetravalent organic group, and n is 2 or more.
    Type: Application
    Filed: March 28, 2016
    Publication date: March 29, 2018
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Satoshi KATO, Toshiaki NAGASAWA
  • Publication number: 20070042907
    Abstract: A dispersion composition containing a urea-urethane (UU) compound as (a) component, and one or more types of coloring inhibitors selected from among a silicate, a carbonate, a sulfate, a phosphate, a metal oxide, a metal hydroxide, a hindered phenol compound, a hindered amine compound and an acetoacetic acid derivative as (b) component, characterized in that one of more components selected from (a) component and (b) component is subjected to a heating treatment, or a developer UU dispersion prepared by using a cellulose derivative and a specific anionic surfactant as a dispersant for the developer UU is subjected to a heating treatment.
    Type: Application
    Filed: October 21, 2004
    Publication date: February 22, 2007
    Applicant: Chemipro Kasei Kaisha, Ltd.
    Inventors: Toshiaki Nagasawa, Shinobu Tomita, Tetsushi Kono
  • Publication number: 20060285523
    Abstract: Based on traffic that includes a plurality of types of calls and varies with time, resources are located efficiently in a base transceiver station that has a plurality of cards that perform baseband signal processing, and prevention of the occurrence of call loss is contrived.
    Type: Application
    Filed: May 12, 2004
    Publication date: December 21, 2006
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Hidenori Ishii, Toshiaki Nagasawa, Kenji Takagi, Go Nakano
  • Publication number: 20060236659
    Abstract: A vertically filling-packaging device for filling contents, through a filling mechanism (5), into a packaging bag (P) formed by forming a film (F) delivered from a film roll (7) into a cylindrical shape, by longitudinally sealing the film (F) by a longitudinally sealing mechanism (3), and by laterally sealing the film (F) by a laterally sealing mechanism (4). The device comprises a rotating mechanism (41) for rotating a pair of heat seal rolls (41a) composing the laterally sealing mechanism (4), and a vertically moving mechanism (42) for moving the heat seal rolls (41a) upward and downward.
    Type: Application
    Filed: July 7, 2004
    Publication date: October 26, 2006
    Applicant: Nippon Seiki Co., Ltd.
    Inventors: Ysuhito Miyazawa, Masaki Kumagai, Toshiaki Nagasawa
  • Publication number: 20050172736
    Abstract: A thickness detection device for filling and packaging bag, comprising a thickness detection mechanism capable of detecting a difference in thickness between a bag-shaped part and a lateral seal part formed in a continuous filling and packaging bag having detection elements following up the lateral movement of the filling and packaging bag relative to the feeding direction of the continuous filling and packaging bag positioned so as to be allowed to pressingly abut on each other from both outer surface sides of the film of the filling and packaging bag and a detector for detecting the displacement of the detecting elements by a difference in thickness between the bag-shaped part and the lateral seal part of the filling and packaging bag, whereby even if a packaging style for each package type, particularly, the thickness of the filling and packaging bag is changed, the follow-up capability to the lateral movement for the filling and packaging bag can be improved, and the detector can be operated in stable con
    Type: Application
    Filed: March 31, 2003
    Publication date: August 11, 2005
    Inventors: Masaki Kumagai, Toshiaki Nagasawa
  • Publication number: 20050096089
    Abstract: A base station apparatus 102 is provided with a terminal state management section 107 that manages the state as to whether a communication terminal apparatus 101 which belongs to the cell covered by the own apparatus is in communication or waiting for a call, a decision section 1051 that decides whether the communication terminal apparatus 101 is stationary or moving and a resource reservation allocation section 1052 that allocates reservations of resources according to the respective numbers of moving terminal apparatuses and stationary terminal apparatuses calculated based on the decision result, and performs state management according to the actual state of the communication terminal apparatus 101 and allocates resources to the respective moving terminal apparatuses and stationary terminal apparatuses appropriately.
    Type: Application
    Filed: November 2, 2004
    Publication date: May 5, 2005
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Hidenori Ishii, Toshiaki Nagasawa, Kenji Takagi
  • Publication number: 20020194532
    Abstract: When operations of control sections 102a and 102b are changed, if the type of unprocessed data is not changed, the whole of table A′ of control section 102b corresponding to table A of control section 102a is cleared, table B is created in an area different from table A′, the old type data stored in table A is converted to new type data and stored in table B. After this data type conversion processing is started, difference data (old type data) written in control section 102a is stored in table A′ after all data is cleared, this stored difference data is converted to new type data and written in table B and the corresponding data in table A′ is cleared. When there is no more difference data through this data type conversion processing, switching between the operational and standby systems is performed.
    Type: Application
    Filed: November 27, 2001
    Publication date: December 19, 2002
    Inventor: Toshiaki Nagasawa
  • Patent number: 5988486
    Abstract: In a spot welding gun which is made up of a gun main body which is operated for equalization by a driving source, a stationary electrode tip which is immovable relative to the gun main body, and a movable electrode tip which is connected to a pressing source, both electrode tips are pressed to a workpiece with an even force, to thereby perform a high quality spot welding. The driving source is controlled such that the electrode force of the stationary electrode tip, by the driving source, to the workpiece becomes substantially zero. In this manner, there occurs no difference in the electrode forces by both the electrode tips to the workpiece.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: November 23, 1999
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Nobuo Kobayashi, Toshiaki Nagasawa, Hisaya Watanabe, Kouji Oda, Isao Bundou
  • Patent number: 5977505
    Abstract: When a workpiece which is made up by laminating a plurality of plates of different thicknesses is welded by using a spot welding gun having a pair of electrode tips, the electrode force to the workpiece by one of the electrode tips, which is positioned on the side of a thinner plate, is made larger that the electrode force to the workpiece by the other of the electrode tips. The contact pressure on the side of the thinner plate becomes larger with the result that the contact resistance decreases. Therefore, the nugget on the side of the thinner plate becomes smaller than the nugget on the side of the thicker plate.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: November 2, 1999
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Nobuo Kobayashi, Isao Bundou, Toshihiro Murakawa, Kouji Oda, Toshiaki Nagasawa
  • Patent number: 5945011
    Abstract: A control apparatus for a welding robot has a welding gun which is provided at a front end of a robot arm to be driven by plural kinds of servomotors. An amplifier circuit board is provided so as to mount thereon appropriate inverters by selecting out of those corresponding to respective kinds of servomotors and an inverter for the welding gun. A servo software corresponding to each of the inverters is called out of a memory device by discriminating the kind of each of the inverters. In a method of teaching the welding robot in which the welding gun is opened and closed by a servomotor, plural kinds of opening and closing patterns of the welding gun are set in advance. An appropriate opening and closing pattern is selected out of the plural kinds of opening and closing patterns in accordance with the motion of the robot arm, and the selected pattern is made the teaching data relating to the opening and closing of the welding gun.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: August 31, 1999
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Fumitomo Takano, Hitoshi Saito, Hiroki Hashimoto, Toshiaki Nagasawa, Tetsuya Ozawa
  • Patent number: 5898285
    Abstract: A welding robot has a gun main body, a stationary electrode tip which is immovable relative to the gun main body, and a movable electrode tip which is mounted on the gun main body and is opened and closed by a pressing source. The gun main body is movable by a driving source in a direction in which both the electrode tips lie opposite to each other. In teaching the welding robot by the movement thereof to each weld spot position of a workpiece, the movable electrode tip is moved in a closing direction relative to the gun main body by the pressing source in a state in which the gun main body is kept stationary at a predetermined position relative to the gun support bracket. The stationary electrode tip is moved in the closing direction by a relative movement of the gun main body relative to the movable electrode tip after the movable electrode tip has come into contact with the workpiece. A position at which the stationary electrode tip contacted the workpiece is detected.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: April 27, 1999
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Toshiaki Nagasawa, Nobuo Kobayashi, Hisaya Ohiwa, Mitsugu Kaneko, Isao Bundou
  • Patent number: 5621672
    Abstract: A control system for controlling operations of a plurality of controlled devices each capable of positioning a plurality of logical axes included therein to perform operations such as welding or assembling workpieces, wherein a parallel control of the respective devices is performed by a multitask processor, control of operations such as welding which require a real-time control in its nature is performed by a real-time processor, and a communication memory is provided between the both processors for transferring therebetween required commands and data for the positioning control or the operations control.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: April 15, 1997
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Minoru Kobayashi, Toshiaki Nagasawa, Makoto Suzuki, Shigeo Kobayashi
  • Patent number: 5241250
    Abstract: A servomotor control system for multi-axes in which a single servo-amplifier can operate m rotational speed control loops and m current control loops as well for m servomotors simultaneously, where m is a predetermined integer greater than unity, while a single positioning controller with a signal teaching box can handle n servo-amplifiers in parallel, where n is a predetermined integer greater than unity, thereby mn servomotors in total can be controlled by a single system. In the system of the invention, the multiple servomotors can be divided into groups each including up to six servomotors to be controlled as a group and independently from servomotors belonging to other groups. The system of the invention can easily be expanded by a minimum addition of servo-amplifiers and/or positioning controllers to include servomotors more than mn, in which addition of one or more teaching boxes is possible whenever they become necessary.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: August 31, 1993
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Toshiaki Nagasawa, Koichiro Chaen, Makoto Suzuki, Shigeo Kobayashi, Minoru Kobayashi, Hidenori Koga
  • Patent number: 5079491
    Abstract: A robot control system including a robot, a robot controller for controlling operation of the robot, and a teaching box for teaching the robot through the robot controller. The teaching box includes an input unit separate from the robot controller for entering a command signal to teach the robot its operation to be effected and a control unit for controlling the input unit and processing and for applying the command signal to the robot controller.
    Type: Grant
    Filed: May 22, 1989
    Date of Patent: January 7, 1992
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hidetaka Nose, Kazuhiro Kawabata, Yoshihiko Suzuki, Toshiaki Nagasawa
  • Patent number: 4794690
    Abstract: A phase adjusting apparatus for use in an assembling machine for assembling first and second workpieces including a movable frame which is arranged to move into and out of the space formed between the two workpieces. Prior to coupling the two workpieces, the movable frame is moved to enter the space and a first movable table and a second movable table on the movable frame are used to adjust the phase of a rotary body on the first workpiece and the phase of a rotary shaft on the second workpiece to another. After removing the movable frame from the space, the two workpieces are then brought together so that the rotary body and the rotary shaft are coupled to each other.
    Type: Grant
    Filed: September 25, 1987
    Date of Patent: January 3, 1989
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Junichi Yamanaga, Keiichiro Gunji, Yousuke Narita, Toshiaki Nagasawa, Yoshifumi Kawabata