Patents by Inventor Minoru Sakai

Minoru Sakai 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: 6518501
    Abstract: An electronic part in which a surface acoustic wave device or the like is packaged by using a resin. The electronic part has a resin base in which a lead frame and a resin are integrally molded, a surface acoustic wave device or the like mounted on the top face of the resin base, a bonding wire for connecting a lead portion on the top face of the resin base and the electronic device, and a resin cap which is bonded on the resin base so as to form a space between the resin cap and the resin base. Apart of the lead is bent along the surface of the plastic package. It is also possible to dispose the surface acoustic wave device so that its electrode pattern formation surface faces the resin base without using the bonding wire.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: February 11, 2003
    Assignee: NRS Technologies Inc.
    Inventors: Hiroshi Kawahara, Minoru Sakai, Yasushi Yamamoto
  • Publication number: 20020194960
    Abstract: A method for recovering a valuable metal including the steps of: recovering valuables from scraps containing the valuable metal; and removing at least part of carbon contained in the recovered valuables by heating the valuables in a non-oxidizable atmosphere, and a method for recovering a valuable metal including the steps of: thermally treating a melted mixture including the valuable metal and slag with a flux component to separate the valuable metal in a liquid phase from the slag in another liquid phase. In accordance with the present invention, the valuable metal in the scrap can be easily recovered.
    Type: Application
    Filed: May 28, 2002
    Publication date: December 26, 2002
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Kiyotaka Yasuda, Minoru Sakai
  • Patent number: 6395466
    Abstract: A heat-developable image recording material containing an organic silver salt, a reducing agent and an organic binder characterized in that the reducing agent comprises a combination of two or more different kinds of reductive compounds exhibiting superadditivity was disclosed.
    Type: Grant
    Filed: April 12, 2000
    Date of Patent: May 28, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazunobu Katoh, Minoru Sakai
  • Publication number: 20020047501
    Abstract: In the surface acoustic wave device including a lead frame made of metal in which a plurality of inner leads 9 are formed, wherein a chip 1 comprising at least one piezoelectric substrate is mounted on a resin base 3 into which a lead frame is molded integrally, are provided a wire lead section metal surface 7a that is formed by exposing a wire lead section 7, which is electrically connected with an electrode of the chip through a bonding wire 4, out of inner leads that are arranged on both sides of the chip, from the resin base, and a chip lead section metal surface 10a that is formed by exposing a chip lead section 10, which is partially covered with the chip, from the resin base.
    Type: Application
    Filed: October 23, 2001
    Publication date: April 25, 2002
    Inventors: Tadaaki Tsuda, Yasushi Yamamoto, Hiroshi Kawahara, Yoshihiro Takahashi, Minoru Sakai
  • Patent number: 6376166
    Abstract: A heat-developable photosensitive material which comprises, on the same side of a support, at least (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a phenol compound represented by the following general formula (1), (d) a binder, and (e) a coupler compound: wherein V1 to V8 each independently represent a hydrogen atom or a functional group; L represents a bridging group consisting of —CH(V9)— or —S—; V9 represents a hydrogen atom or a functional group. The heat-developable photosensitive material causes extremely low fog and is suitable for photomechanical reproduction.
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: April 23, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toyohisa Oya, Katsuyuki Watanabe, Masaru Takasaki, Minoru Sakai
  • Patent number: 6358677
    Abstract: A heat-developable recording material having, at least on one side and the same side of the support, (a) reducible silver salt, (b) a reducing agent other than a compound represented by the general formula (1) below, (c) a binder, and (d) at least one compound represented by the general formula (1) below; content of the compound represented by the general formula (1) being 0.01 to 100 mol % with respect to the reducing agent: [where in the general formula (1), R1, R2, R3, X1 and X2 independently represent a hydrogen atom; halogen atom; or substituent which is bound to the benzene ring via a carbon atom, oxygen atom, nitrogen atom, sulfur atom or phosphorus atom. At least either X1 or X2 represents a group represented as —NR4R5, where R4 and R5 independently represent a group selected from a hydrogen atom, alkyl group and the like.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: March 19, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masahiko Taniguchi, Katsuyuki Watanabe, Shigeo Hirano, Minoru Sakai
  • Publication number: 20020024409
    Abstract: A plurality of lead frames 10 disposed in parallel each have an inner and an outer lead 1 and 2, and not only the pitches A1 and A2 of the inner and outer leads 1 and 2 but also the widths A3 and A4 thereof are freely chosen to match a PWB wiring pattern or the like. An SAW filter 20 uses the lead frames 10 secured to a resin molding base 4 and connected to an SAW chip, and is covered by a resin molding cap 5.
    Type: Application
    Filed: August 27, 2001
    Publication date: February 28, 2002
    Inventors: Minoru Sakai, Yasushi Yamamoto
  • Patent number: 6344313
    Abstract: An object of the present invention is to provide a heat-developable photosensitive material of improved fluctuation of photographic performance (sensitivity, Dmin) arisen from fluctuation of development temperature condition (temperature, time) and storage time after heat development.
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: February 5, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takahiro Goto, Toshihide Ezoe, Hiroyuki Suzuki, Minoru Sakai, Hideki Maeta, Nobuaki Inoue, Masaru Takasaki
  • Publication number: 20010054331
    Abstract: A method for recovering a valuable metal including the steps of: recovering valuables from scraps containing the valuable metal; and removing at least part of carbon contained in the recovered valuables by heating the valuables in a non-oxidizable atmosphere, and a method for recovering a valuable metal including the steps of: thermally treating a melted mixture including the valuable metal and slag with a flux component to separate the valuable metal in a liquid phase from the slag in another liquid phase. In accordance with the present invention, the valuable metal in the scrap can be easily recovered.
    Type: Application
    Filed: March 26, 2001
    Publication date: December 27, 2001
    Inventors: Kiyotaka Yasuda, Minoru Sakai
  • Patent number: 6329127
    Abstract: An object of the present invention is to provide a heat-developable photosensitive material of less heat development temperature and humidity dependency, which is unlikely to be affected by uneven temperature distribution in heat development apparatuses and humidity condition, and can stably form uniform images, in particular, a heat-developable photosensitive material of improved stability of coating solutions overtime, which can form uniform ultrahigh contrast images without unevenness, which are suitable for mechanical processes, and exhibit suppressed fluctuation of photographic performance depending on the storage condition.
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: December 11, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tadashi Ito, Katsuyuki Watanabe, Kazunobu Katoh, Minoru Sakai
  • Patent number: 6329134
    Abstract: A heat-developable photosensitive material which comprises, on at least one of the surfaces of a support, (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a reducing agent, (d) an ultrahigh contrast agent, (e) a binder, and (f) at least one compound represented by the following formula (1) on a single surface: wherein, X represents a halogen atom; R1 represents a substituted aryl group or a heterocyclic group; R2 represents a functional group; r is an integer of from 0 to 4; and when r≧2, plural groups represented by R2 may be the same or different and they may bind to each other to form a 5- to 7-membered non-aromatic or aromatic carbon ring.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: December 11, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Katsuyuki Watanabe, Minoru Sakai, Toyohisa Oya
  • Patent number: 6300841
    Abstract: In an atomic oscillator, a high-frequency converting circuit converts the output of a standard oscillator into a high frequency signal such that the frequency of the high frequency signal multiplied by a low natural number equals an atomic resonant frequency signal. The high frequency signal is then multiplied by a low natural number in an active, low-natural-number multiplier circuit to convert the output frequency of the standard oscillator into a resonant frequency to be input to the atomic oscillator. The result is that, without using a passive, high-natural-number multiplier circuit, such as a varactor diode, which is expensive, it is possible to convert the output frequency of the standard oscillator into a resonant frequency signal of a rubidium atom, thus downsizing the circuits of the atomic oscillator and reducing the term and cost of manufacture.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: October 9, 2001
    Assignee: Fujitsu Limited
    Inventors: Ken Atsumi, Hideyuki Matsuura, Yoshifumi Nakajima, Yoshito Koyama, Koji Nakamuta, Minoru Sakai
  • Patent number: 6203972
    Abstract: A photothermographic material has a support bearing a photosensitive layer containing an organic silver salt, a photosensitive silver halide, a reducing agent, and a ultrahigh contrast promoting agent. The support is a plastic film having a Tg of at least 90° C. Better results are obtained when the support experiences a dimensional change of up to 0.04% when heated at 115° C. for 30 seconds. Preferably, a conductive polymer layer is provided typically as an outermost layer, and an outermost layer has a Bekk smoothness of up to 4,000 seconds, typically a back layer has a Bekk smoothness of up to 4,000 seconds. The photothermographic material has improved dimensional stability and produces ultrahigh contrast images with high Dmax.
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: March 20, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazunobu Katoh, Minoru Sakai, Tsutomu Arai, Kiyokazu Hashimoto
  • Patent number: 6090538
    Abstract: A heat developable light-sensitive material comprising an organic acid silver and silver halide, which contains a compound represented by the following formula (A) and a hydrazine derivative: ##STR1## wherein R represents a hydrogen atom or an alkyl group having from 1 to 10 carbon atoms and R' and R" each represents an alkyl group having from 1 to 5 carbon atoms.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: July 18, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tsutomu Arai, Toshiaki Kubo, Minoru Sakai, Kohzaburoh Yamada, Kazunobu Katoh
  • Patent number: 6072059
    Abstract: A heat development image forming process comprises steps of: imagewise exposing to light a heat developable light-sensitive material comprising a support, a light-sensitive layer and a non-light-sensitive layer, and then heating the light-sensitive material. The light-sensitive layer or the non-light-sensitive layer contains a heptamethine cyanine dye represented by the formula (I): in which Z.sup.1 is --CR.sup.11 R.sup.12 --, --O--, --S-- or --NR.sup.13 --; Z.sup.2 is --CR.sup.21 R.sup.22 --, --O--, --S-- or --NR.sup.23 --; each of R.sup.1 and R.sup.2 independently is an alkyl group, a substituted alkyl group, an alkenyl group, a substituted alkenyl group, an aralkyl group or a substituted aralkyl group; R.sup.3 is hydrogen, a halogen atom, an alkyl group, a substituted alkyl group, a cycloalkyl group, a substituted cycloalkyl group, an aryl group, a substituted aryl group, a heterocyclic group, a substituted heterocyclic group, cyano, --SO.sub.2 R.sup.31, --OR.sup.32, --SR.sup.33 or --NR.sup.34 R.sup.
    Type: Grant
    Filed: January 21, 1998
    Date of Patent: June 6, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toru Harada, Itsuo Fujiwara, Minoru Sakai
  • Patent number: 6027872
    Abstract: A photothermographic element comprising a photosensitive silver halide, an organic silver salt, a reducing agent, and a compound of formula (I) on a support has a high sensitivity and storage stability.Z.sup.1 --(W.sup.1).sub.m1 --L.sup.1 --S--S--L.sup.2 --(W.sup.2).sub.m2 --Z.sup.2 (I)L.sup.1 and L.sup.2 are divalent aliphatic hydrocarbon groups, W.sup.1 and W.sup.2 are divalent linking groups containing 0, S or N, Z.sup.1 is hydrogen, halogen, aliphatic hydrocarbon, aromatic or heterocyclic group, Z.sup.2 is an aromatic or heterocyclic group, m.sub.1 =0, 1, 2 or 3, and m.sub.2 =0, 1, 2 or 3.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: February 22, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Ryo Suzuki, Tsutomu Arai, Katsuyuki Watanabe, Shigeo Hirano, Minoru Sakai
  • Patent number: 6025122
    Abstract: A heat developable photographic material comprising a reducible silver salt, a reducing agent, a contrast enhancer, and a binder further contains a thiosulfonic acid ester compound and/or a thiosulfonic acid compound. The material exhibits ultrahigh contrast and low fog and is minimized in the variation of photographic characteristics with heat development conditions.
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: February 15, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Minoru Sakai, Shigeo Hirano, Katsuyuki Watanabe
  • Patent number: 5994040
    Abstract: A processing composition for silver halide photographic light-sensitive material, which comprises at least one compound represented by the following formula (A), (A-I) or (A-II) and at least one compound represented by the following formula (B): ##STR1## Also disclosed are a developer prepared from the processing composition, and a processing method using the developer.
    Type: Grant
    Filed: March 4, 1997
    Date of Patent: November 30, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shinnichi Morishima, Kohzaburoh Yamada, Seiji Yamashita, Minoru Sakai, Kouta Fukui, Eiichi Okutsu
  • Patent number: 5989773
    Abstract: A developing processing method and an image forming method are described, which comprise the steps of (a) exposing a silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer; and (b) developing the exposed silver halide photographic material with a developer containing a developing agent, containing substantially no dihydroxybenzene developing agent, containing an auxiliary developing agent exhibiting a superadditive property, containing a quaternary onium salt compound, and having a pH value of from 9.5 to 11.5, or a developer containing a developing agent, containing substantially no dihydroxybenzene developing agent, and having a pH value of from 10 or less.
    Type: Grant
    Filed: March 31, 1997
    Date of Patent: November 23, 1999
    Assignee: Fuji Photo Film Co., Ltd
    Inventors: Kouta Fukui, Minoru Sakai, Kazunobu Katoh
  • Patent number: 5968725
    Abstract: A photothermographic material comprising a photosensitive silver halide, an organic silver salt, a reducing agent, and an ultrahigh contrast promoting agent, typically a hydrazine derivative. In one embodiment, a compound having a group for promoting adsorption to the silver halide is contained for suppressing occurrence of pepper fog. In another embodiment, a 5- or 6-membered heterocyclic mercapto compound having at least two nitrogen atoms or a tetraazaindene compound is contained for suppressing a change of photographic properties, typically image enlargement with a variation of developing conditions. In either case, the photothermographic material can form super-high contrast images of quality.
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: October 19, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazunobu Katoh, Minoru Sakai