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    • 1. 发明申请
    • METHOD FOR PRODUCTION OF POLYESTER COPOLYMER USING RECOMBINANT MICROORGANISM
    • 使用重组微生物生产聚酯共聚物的方法
    • US20110104768A1
    • 2011-05-05
    • US12989333
    • 2009-04-23
    • Seiichi TaguchiKenji TajimaYasuharu SatohKen'ichiro MatsumotoMiwa YamadaShusei ObataHiromi KambeKatsuhiro KohdaKatsuhiro OhnoTakashi Shimamura
    • Seiichi TaguchiKenji TajimaYasuharu SatohKen'ichiro MatsumotoMiwa YamadaShusei ObataHiromi KambeKatsuhiro KohdaKatsuhiro OhnoTakashi Shimamura
    • C12P7/62C12N1/00C12N1/21
    • C12P7/62
    • The object of the present invention is to provide a method for efficiently producing a polyester copolymer consisting of 3HB and LA via microbial fermentation with the use of a sugar as a starting material.The following is provided: a method for producing a polyester copolymer consisting of 3-hydroxybutyrate and lactate, which comprises the steps of: (1) culturing a recombinant microorganism having a protein capable of catalyzing a reaction of transferring CoA to propionic acid and/or lactate, a protein capable of catalyzing a reaction of forming acetoacetyl-CoA from two acetyl-CoA molecules, a protein capable of catalyzing a reaction of acetoacetyl-CoA reduction, and a protein capable of catalyzing a reaction of polyhydroxyalkanoate synthesis consisting of the following amino acid sequence (a) or (b) in a medium containing a carbon source: (a) an amino acid sequence derived from the amino acid sequence shown in SEQ ID NO: 2 by substitution of at least one of the amino acids at positions 130, 325, 477, and 481 with different amino acid(s); or (b) an amino acid sequence derived from the protein specified in (a) by additional deletion or substitution of at least one amino acid other than the amino acids at positions 130, 325, 477, and 481 or by insertion of at least one amino acid residue; and (2) collecting the polyester copolymer from the culture product obtained in step (1). According to the production method of the present invention, a polyester copolymer consisting of 3HB and LA can be efficiently produced using an inexpensive carbon source as a starting material, and thus the production cost of a biodegradable plastic can be reduced.
    • 本发明的目的是提供一种利用糖作为原料,通过微生物发酵有效地制备由3HB和LA组成的聚酯共聚物的方法。 提供以下:由3-羟基丁酸酯和乳酸酯组成的聚酯共聚物的制造方法,其特征在于,包括以下步骤:(1)培养具有能够催化将CoA转移到丙酸和/或 乳酸盐,能够催化从两个乙酰辅酶A分子形成乙酰乙酰辅酶A的反应的蛋白质,能够催化乙酰乙酰辅酶A还原反应的蛋白质,以及能够催化由下列氨基组成的聚羟基链烷酸酯合成反应的蛋白质 含有碳源的培养基中的酸序列(a)或(b):(a)从SEQ ID NO:2所示的氨基酸序列衍生的氨基酸序列,通过将位置130的至少一个氨基酸置换 ,325,477和481具有不同的氨基酸; 或(b)衍生自(a)中规定的蛋白质的氨基酸序列,通过除了位置130,325,477和481之外的氨基酸以外的至少一个氨基酸的另外缺失或取代或通过插入至少一个 氨基酸残基; 和(2)从步骤(1)获得的培养产物中收集聚酯共聚物。 根据本发明的制造方法,可以使用廉价的碳源作为原料,有效地制造由3HB和LA组成的聚酯共聚物,从而可以降低生物降解性塑料的制造成本。
    • 4. 再颁专利
    • Infrared detector
    • 红外探测器
    • USRE35333E
    • 1996-09-24
    • US261815
    • 1994-06-17
    • Naoko IwasakiKatsuhiro Ohno
    • Naoko IwasakiKatsuhiro Ohno
    • G01J5/06
    • G01J5/061
    • An infrared detector wherein an infrared detecting device can be cooled efficiently without increasing thermal stresses generated in the device body owing to cooling during the operation of the detector, and intrusion of ambient light can be prevented. A container for the infrared detecting device, which includes a bottom plate having a projection formed in the center thereof, is provided on an inner end portion of an inner cylinder constituting a dewar, and the infrared detecting device is placed on and secured to the projection of the bottom plate. The container bottom plate is made of an Invar, while the end portion of the inner cylinder is made of a Kovar or an Invar.
    • 一种红外检测器,其中可以有效地冷却红外线检测装置,而不会由于在检测器的操作期间的冷却而增加在装置主体中产生的热应力,并且可以防止环境光的侵入。 一种用于红外线检测装置的容器,其包括在其中心形成有突起的底板,设置在构成杜瓦瓶的内筒的内端部,并且红外线检测装置被放置并固定到突起 的底板。 容器底板由殷钢制成,而内筒的端部由科瓦或殷钢制成。
    • 5. 发明授权
    • Process for manufacturing a composite magnetic head structure
    • 复合磁头结构的制造方法
    • US4837922A
    • 1989-06-13
    • US213465
    • 1988-06-27
    • Jirou ToriuKatsuhiro OhnoJun Miyajima
    • Jirou ToriuKatsuhiro OhnoJun Miyajima
    • G11B5/265
    • G11B5/2651Y10T29/49057
    • A composite magnetic head tip has a pair of head cores (2,3) facing each other and each having a center core (5,7) and a side core (4,6) which are separated by a magnetic gap (8,9) and are glass welded together at an apex portion (32). Each head core has a set of notches (14,14') which define a track width in the magnetic gap. Each notch is formed so that it begins at a confronting surface (29) where the center cores face each other, crosses through the magnetic gap, and ends on a sliding surface (28) for slidably contacting a magnetic medium. The notches end at a point which is directly above the welded position (19) provided at the apex portion of each head core. A process for manufacturing the composite magnetic head tip includes the steps of first forming a head core and then forming a set of notches therein, then forming another head core and forming another set of notches therein, aligning track widths and then glass molding each of the head cores together while at the same time filling the track notches with the same glass molding. An alternative process involves forming the notches in the head core blocks such that the lower surface (31) of the notches passes below the apex portion of the head core blocks, and applying glass molding to the notches and between the two head cores using a glass material that has a melting point substantially as low as the melting point of the glass material used for glass welding the side and center cores.
    • 复合磁头尖端具有彼此面对的一对磁头磁芯(2,3),每个具有中心磁芯(5,7)和侧磁芯(4,6),它们被磁隙(8,9 ),并且在顶部(32)处被玻璃焊接在一起。 每个磁芯芯具有限定磁隙中的磁道宽度的一组凹口(14,14')。 每个凹口形成为使得其开始于中心芯彼此面对的相对表面(29),穿过磁隙,并且在滑动表面(28)上终止以滑动地接触磁性介质。 切口在直接位于设置在每个头部芯部的顶点处的焊接位置(19)的上方终止。 制造复合磁头头的方法包括以下步骤:首先形成头芯,然后在其中形成一组凹口,然后形成另一个头芯,并在其中形成另一组凹口,对准轨道宽度,然后玻璃成型 头芯在一起,同时用相同的玻璃成型填充轨道凹口。 替代方法包括在头芯块中形成凹口,使得凹口的下表面(31)穿过头芯块的顶部部分的下方,并且使用玻璃将玻璃模制件施加到凹口和两个头部芯部之间 材料的熔点基本上低于用于玻璃焊接侧面和中心芯的玻璃材料的熔点。
    • 7. 发明授权
    • Infrared detector
    • 红外探测器
    • US5260575A
    • 1993-11-09
    • US29033
    • 1993-03-10
    • Naoko IwasakiKatsuhiro Ohno
    • Naoko IwasakiKatsuhiro Ohno
    • G01J5/06
    • G01J5/061F25D19/006
    • An infrared detector wherein an infrared detecting device can be cooled efficiently without increasing thermal stresses generated in the device body owing to cooling during the operation of the detector, and intrusion of ambient light can be prevented. A container for the infrared detecting device, which includes a bottom plate having a projection formed in the center thereof, is provided on an inner end portion of an inner cylinder constituting a dewar, and the infrared detecting device is placed on and secured to the projection of the bottom plate. The container bottom plate is made of an Invar, while the end portion of the inner cylinder is made of a Kovar or an Invar.
    • 一种红外检测器,其中可以有效地冷却红外线检测装置,而不会由于在检测器的操作期间的冷却而增加在装置主体中产生的热应力,并且可以防止环境光的侵入。 一种用于红外线检测装置的容器,其包括在其中心形成有突起的底板,设置在构成杜瓦瓶的内筒的内端部,并且红外线检测装置被放置并固定到突起 的底板。 容器底板由殷钢制成,而内筒的端部由科瓦或殷钢制成。