Patents by Inventor Naohiko Oyasato

Naohiko Oyasato 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: 7877157
    Abstract: A design support apparatus includes an evaluation unit that evaluates a recyclability of the product, using evaluation condition and parts/material data, an analysis unit that analyzes a factor obstructing the recyclability based on an evaluation result of the evaluating unit, and a display unit that displays a remedy against an obstruction factor provided as an analysis result of the analysis unit.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: January 25, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Naohiko Oyasato, Toshimitsu Kumazawa
  • Patent number: 7340351
    Abstract: A design support apparatus includes an evaluation unit that evaluates a recyclability of the product, using evaluation condition and parts/material data, an analysis unit that analyzes a factor obstructing the recyclability based on an evaluation result of the evaluating unit, and a display unit that displays a remedy against an obstruction factor provided as an analysis result of the analysis unit.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: March 4, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Naohiko Oyasato, Toshimitsu Kumazawa
  • Publication number: 20080015720
    Abstract: A design support apparatus includes an evaluation unit that evaluates a recyclability of the product, using evaluation condition and parts/material data, an analysis unit that analyzes a factor obstructing the recyclability based on an evaluation result of the evaluating unit, and a display unit that displays a remedy against an obstruction factor provided as an analysis result of the analysis unit.
    Type: Application
    Filed: September 19, 2007
    Publication date: January 17, 2008
    Inventors: Naohiko Oyasato, Toshimitsu Kumazawa
  • Publication number: 20040054516
    Abstract: A design support apparatus includes an evaluation unit that evaluates a recyclability of the product, using evaluation condition and parts/material data, an analysis unit that analyzes a factor obstructing the recyclability based on an evaluation result of the evaluating unit, and a display unit that displays a remedy against an obstruction factor provided as an analysis result of the analysis unit.
    Type: Application
    Filed: June 27, 2003
    Publication date: March 18, 2004
    Inventors: Naohiko Oyasato, Toshimitsu Kumazawa
  • Patent number: 6332909
    Abstract: A processing apparatus capable of separating and recovering resins and metals, respectively, from an object being processed, which has resins and metals as its constituent, comprises a first gastight area (102), in which temperature and pressure are regulated so as to permit selective thermal decomposition of resins from the object (150) being processed, a second gastight area (103), which is partitioned from the first gastight area by an openable and closeable partition (105C) and in which temperature and pressure are regulated so as to permit selective vaporization of metals from the object, first recovering chamber (111) connected to the first gastight area for recovering gases produced by thermal decomposition of resins, and second recovering chamber (115) connected to the second gastight area for recovering vaporized metals.
    Type: Grant
    Filed: February 23, 1999
    Date of Patent: December 25, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kouichi Teshima, Tomohiro Todoroki, Terunobu Hayata, Fuminobu Tezuka, Masao Koyama, Naohiko Oyasato, Tomiaki Furuya, Yoshiaki Yokoyama, Teruhisa Ogihara, Kaichiro Ogihara
  • Patent number: 5744281
    Abstract: A resist composition for forming a pattern, which comprises (a) a compound represented by the following formula (1) and satisfying the following inequalities, ##STR1## wherein R.sup.1 is hydrogen atom or methyl group, R.sup.2 is a monovalent organic group, m is 0 or a positive integer, n is a positive integer, and m and n satisfying a condition of 0.03.ltoreq.n/(m+n).ltoreq.1, (b) a compound capable of generating an acid when irradiated with light, and (c) 4-phenylpyridine, wherein a weight-average molecular weight, Mw and a number-average molecular weight, Mn satisfy the following inequality, 4,000.ltoreq.Mw.ltoreq.50,000, 1.10.ltoreq.Mw/Mn.ltoreq.2.50 (Mw and Mn respectively represent value converted in styrene).
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: April 28, 1998
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hirokazu Niki, Hiromitsu Wakabayashi, Rumiko Hayase, Naohiko Oyasato, Yasunobu Onishi, Kazuo Sato, Kenji Chiba, Takao Hayashi
  • Patent number: 5658706
    Abstract: A resist composition for forming a pattern, which comprises (a) a compound represented by the following formula (1) and satisfying the following inequalities, ##STR1## wherein R.sup.1 is hydrogen atom or methyl group, R.sup.2 is a monovalent organic group, m is 0 or a positive integer, n is a positive integer, and m and n satisfying a condition of 0.03.ltoreq.n/(m+n).ltoreq.1, (b) a compound capable of generating an acid when irradiated with light, and (c) a nitrogen-containing compound, wherein a weight-average molecular weight, Mw and a number-average molecular weight, Mn satisfy the following inequality, 4,000.ltoreq.Mw.ltoreq.50,000, 1.10.ltoreq.Mw/Mn.ltoreq.2.50 (Mw and Mn respectively represent value converted in styrene).
    Type: Grant
    Filed: September 8, 1994
    Date of Patent: August 19, 1997
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hirokazu Niki, Hiromitsu Wakabayashi, Rumiko Hayase, Naohiko Oyasato, Yasunobu Onishi, Kazuo Sato, Kenji Chiba, Takao Hayashi
  • Patent number: 5518864
    Abstract: Disclosed is a photosensitive resin composition, containing a polyamic acid derivative having a repeating unit represented by general formula (1) given below and a photosensitive agent: ##STR1## where, R.sup.1 represents a tetravalent organic group, R.sup.2 represents a divalent organic group, and R.sup.3 and R.sup.4 represent a monovalent organic group, at least one of R.sup.3 and R.sup.4 being an organic group having at least on hydroxyl group bonded to an aromatic ring. A semiconductor substrate is coated with the photosensitive resin composition, followed by exposing the coated film to light through a patterning mask and subsequently applying a development and a heat treatment so as to form a polyimide film pattern. A baking treatment also be applied immediately after the exposure step. The photosensitive resin composition of the present invention performs the function of a positive or negative photoresist film and the function of a polyimide protective film on a semiconductor substrate.
    Type: Grant
    Filed: March 30, 1994
    Date of Patent: May 21, 1996
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masayuki Oba, Rumiko Hayase, Naoko Kihara, Shuzi Hayase, Yukihiro Mikogami, Yoshihiko Nakano, Naohiko Oyasato, Shigeru Matake, Kei Takano
  • Patent number: 5403695
    Abstract: Disclosed herein is a resist for forming patterns, which is greatly sensitive to ultraviolet rays an ionizing radiation, and which can therefore form a high-resolution resist pattern if exposed to ultra violet rays or an unionizing radiation. Hence, the resist is useful in a method of manufacturing semicon ductor devices having high integration densities. The resist comprises tert-butoxycarbonyl methoxypolyhydroxy styrene and an o-quinonediazide compound.
    Type: Grant
    Filed: April 30, 1992
    Date of Patent: April 4, 1995
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Rumiko Hayase, Yasunobu Onishi, Hirokazu Niki, Naohiko Oyasato, Yoshihito Kobayashi, Shuzi Hayase
  • Patent number: 5348835
    Abstract: Disclosed is a photosensitive resin composition, containing a polyamic acid derivative having a repeating unit represented by general formula (1) given below and a photosensitive agent: ##STR1## where, R.sup.1 represents a tetravalent organic group, R.sup.2 represents a divalent organic group, and R.sup.3 and R.sup.4 represent a monovalent organic group, at least one of R.sup.3 and R.sup.4 being an organic group having at least on hydroxyl group bonded to an aromatic ring. A semiconductor substrate is coated with the photosensitive resin composition, followed by exposing the coated film to light through a patterning mask and subsequently applying a development and a heat treatment so as to form a polyimide film pattern. A baking treatment also be applied immediately after the exposure step. The photosensitive resin composition of the present invention performs the function of a positive or negative photoresist film and the function of a polyimide protective film on a semiconductor substrate.
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: September 20, 1994
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masayuki Oba, Rumiko Hayase, Naoko Kihara, Shuzi Hayase, Yukihiro Mikogami, Yoshihiko Nakano, Naohiko Oyasato, Shigeru Matake, Kei Takano
  • Patent number: 5326675
    Abstract: A radiation-sensitive layer comprising as a main component a radiation-sensitive composition containing a compound capable of generating an acid when exposed to a chemical radiation and a compound having at least one linkage decomposable by an acid is formed on a substrate. An acidic coating layer is formed on the radiation-sensitive layer. The radiation-sensitive layer and the acidic coating layer are pattern-exposed to a chemical radiation. The radiation-sensitive layer and the acidic coating layer are baked and developed by using an aqueous alkaline solution to obtain a pattern comprising lines and spaces, each having a predetermined width. A fine pattern of a rectangular sectional shape can be formed without producing eaves caused by a surface inhibition layer layer, which is produced on the film surface.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: July 5, 1994
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hirokazu Niki, Rumiko Hayase, Naohiko Oyasato, Yasunobu Onishi, Akitoshi Kumagae, Kazuo Sato, Masataka Miyamura, Yoshihito Kobayashi
  • Patent number: RE35821
    Abstract: A radiation-sensitive layer comprising as a main component a radiation-sensitive composition containing a compound capable of generating an acid when exposed to a chemical radiation and a compound having at least one linkage decomposable by an acid is formed on a substrate. An acidic coating layer is formed on the radiation-sensitive layer. The radiation-sensitive layer and the acidic coating layer are pattern-exposed to a chemical radiation. The radiation-sensitive layer and the acidic coating layer are baked and developed by using an aqueous alkaline solution to obtain a pattern comprising lines and spaces, each having a predetermined width. A fine pattern of a rectangular sectional shape can be formed without producing eaves caused by a surface inhibition layer layer, which is produced on the film surface.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: June 9, 1998
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hirokazu Niki, Rumiko Hayase, Naohiko Oyasato, Yasunobu Onishi, Akitoshi Kumagae, Kazuo Sato, Masataka Miyamura, Yoshihito Kobayashi