公开(公告)号：US5857260A

公开(公告)日：1999-01-12

申请号：US650522

申请日：1996-05-20

申请人： Shuji Yamada ,  Tadashi Hamada ,  Shigetoshi Sakon ,  Shinji Fujimoto

发明人： Shuji Yamada ,  Tadashi Hamada ,  Shigetoshi Sakon ,  Shinji Fujimoto

IPC分类号： B26B19/38 ,  B26B19/04

CPC分类号： B26B19/384

摘要： A cutting device for an electric shaver comprising an outer cutter and a plurality inner blades that are made of a ferrous alloy comprising a substrate of an Fe-Cr stainless steel and a hardened layer of improved hardness and wear resistance. The substrate has a Vickers hardness of 400 or more. The hardened layer has a Vickers hardness of at least 700 and a thickness of 2 to 15 .mu.m. In particular, it is preferred that the hardened layer is a diffusion layer comprising at least 90 vol % of intermetallic compounds of Al and Fe relative to a total volume of the diffusion layer, and Al content included within a depth of at least 2 .mu.m of the diffusion layer is 35 to 65% by weight based upon total weight of a region of the diffusion layer ranging up to the thickness of at least 2 .mu.m. When the ferrous alloy is polished to form the outer cutter and inner blades, it is possible to provide sharp cutting edges of the outer cutter and inner blades, while preventing the occurrence of burrs or micro-chippings at the cutting edges.

摘要翻译： 一种电动剃须刀用切断装置，其特征在于，包括由铁基合金制成的外刀片和多个内刀片，所述铁合金包括Fe-Cr不锈钢基体和硬度和耐磨性提高的硬化层。 基板的维氏硬度为400以上。 硬化层的维氏硬度至少为700，厚度为2至15μm。 特别地，优选硬化层是包含至少90体积％的Al和Fe的金属间化合物相对于扩散层的总体积的扩散层，并且包含在至少2μm的深度内的Al含量 的扩散层的厚度为35〜65重量％，基于扩散层的区域的总重量，其厚度至少为2μm。 当将铁合金抛光以形成外刀片和内刀片时，可以提供外切刀和内刀片的锋利切削刃，同时防止在切削刃处产生毛刺或微碎屑。

公开(公告)号：US06194088B1

公开(公告)日：2001-02-27

申请号：US09331589

申请日：1999-07-01

申请人： Hiroaki Yoshida ,  Hiroshi Yamada ,  Fumio Iwane ,  Junji Imai ,  Tadashi Hamada ,  Shinji Fujimoto ,  Shuji Yamada ,  Shigetoshi Sakon

发明人： Hiroaki Yoshida ,  Hiroshi Yamada ,  Fumio Iwane ,  Junji Imai ,  Tadashi Hamada ,  Shinji Fujimoto ,  Shuji Yamada ,  Shigetoshi Sakon

IPC分类号： B32B1518

CPC分类号： C23C28/321 ,  C23C26/00 ,  C23C28/023 ,  C23C28/34 ,  C23C28/347 ,  Y10S428/941 ,  Y10T428/12806 ,  Y10T428/12937 ,  Y10T428/12979

摘要： An intermetallic-compound coated stainless steel having excellent rigidity, toughness, wear resistance and corrosion resistance comprises a substrate of a martensite stainless steel having a Vickers hardness of 400 or more, and a hard film having a bottom surface adhered to the substrate and an exposed top surface. The hard film has an outermost layer made of a compound selected from the group consisting of a Ti—Ni intermetallic compound, Ti—Fe intermetallic compound, and a mixture of the Ti—Ni intermetallic compound and a Ti—Cu intermetallic compound. The coated stainless steel can be produced by cladding an outer sheet made of Ti or a Ti alloy to a martensite stainless steel sheet directly or through an intermediate sheet made of Ni, Fe or a Ni—Cu alloy, heating the laminate at a temperature of 900° C. to 1150° C. for 30 seconds to 5 minutes, and then cooling the heated laminate at a cooling rate of 1° C./sec or more.

摘要翻译： 具有优异的刚性，韧性，耐磨性和耐腐蚀性的金属间化合物涂布不锈钢包括维氏硬度为400以上的马氏体不锈钢的基材和附着在基材上的底面的硬膜， 顶面。 该硬膜具有由选自Ti-Ni金属间化合物，Ti-Fe金属间化合物和Ti-Ni金属间化合物与Ti-Cu金属间化合物的混合物组成的组中的化合物制成的最外层。 可以通过直接或通过由Ni，Fe或Ni-Cu合金制成的中间片将由Ti或Ti合金制成的外部片材包层到马氏体不锈钢片材上来制造涂覆的不锈钢，在层压体的温度 900℃至1150℃，30秒至5分钟，然后以1℃/秒或更高的冷却速率冷却加热的层压体。

公开(公告)号：US07124511B2

公开(公告)日：2006-10-24

申请号：US10478209

申请日：2002-05-27

申请人： Tadashi Hamada ,  Shinji Fujimoto ,  Shigetoshi Sakon ,  Takashi Kozai

发明人： Tadashi Hamada ,  Shinji Fujimoto ,  Shigetoshi Sakon ,  Takashi Kozai

IPC分类号： B26B21/58 ,  B26B21/56

CPC分类号： B26B21/56 ,  B26B21/38 ,  B26B21/58

摘要： A razor blade is provided, which achieves improved safety in use and reduced cutting resistance to an object to be cut such as beard and hair, as compared with conventional razor blades. This razor blade can be obtained by using, as a silicon thin sheet, a single crystal silicon material such as Si wafer or a polycrystalline silicon material including relatively large silicon crystal grains, forming at least one opening in the silicon thin sheet by chemical etching, and forming a cutting edge made of silicon single crystal by ion beam etching without machining such that the cutting edge projects into the opening and has a nose radius of 0.5 μm or less, and preferably 0.1 μm or less.

摘要翻译： 与传统的剃刀刀片相比，提供了一种剃刀刀片，其实现了使用上的安全性和对诸如胡须和头发等被切割物体的切割阻力的降低。 该剃刀刀片可以通过使用诸如Si晶片的单晶硅材料或包括较大的硅晶粒的多晶硅材料作为硅薄片，通过化学蚀刻在硅薄片中形成至少一个开口， 并且通过离子束蚀刻形成由单晶硅制成的切削刃，而不进行机械加工，使得切削刃突出到开口中并且具有0.5μm或更小的鼻半径，并且优选地为0.1μm或更小。

公开(公告)号：US06637113B2

公开(公告)日：2003-10-28

申请号：US09935284

申请日：2001-08-22

申请人： Toshio Ikuta ,  Shigetoshi Sakon ,  Tadashi Hamada ,  Masakatsu Araki

发明人： Toshio Ikuta ,  Shigetoshi Sakon ,  Tadashi Hamada ,  Masakatsu Araki

IPC分类号： B26B1902

CPC分类号： B26B19/044 ,  B26B19/04 ,  Y10T83/04

摘要： A blade of an electric shaver is disclosed. The blade includes an interior blade detachably attached to a drive element of the electric shaver via an interior blade pushing-up means. The interior blade includes a horizontal surface, a vertical surface, and a relief surface provided between the horizontal surface and the vertical surface, and is elastically pushed upward by the interior blade pushing-up means. The blade further includes a sheet-shaped exterior blade having a plurality of blade apertures. A bottom surface of the exterior blade is elastically contacted with the horizontal surface of the interior blade by a pushing force of the interior blade pushing-up means. Upon driving the drive element, the interior blade is moved laterally such that the horizontal surface of the interior blade rubs against the bottom surface of the exterior blade, and hair introduced into the blade aperture of the exterior blade is held between the horizontal surface of the interior blade and the exterior blade in accordance with a lateral movement of the interior blade and cut by an edge of the exterior blade.

公开(公告)号：US5256095A

公开(公告)日：1993-10-26

申请号：US976582

申请日：1992-11-16

申请人： Yoshinobu Takegawa ,  Shigetoshi Sakon ,  Shuji Yamada

发明人： Yoshinobu Takegawa ,  Shigetoshi Sakon ,  Shuji Yamada

IPC分类号： H01J9/04 ,  H01J61/067

CPC分类号： H01J9/04 ,  H01J61/0675

摘要： An electrode of a discharge lamp which has an improved adhesion between an emitter material and a filament is formed in accordance with the following method. That is, a Fe-Cr-Al alloy is used as the filament. The filament is placed in a heated oxidizing environment to precipitate an aluminum oxide layer uniformly in a surface thereof. Thus precipitated aluminum oxide layer has good adhesion with the filament without flaking thereof. The aluminum oxide layer is coated with triple carbonates consisting of barium carbonate, calcium carbonate and strontium carbonate, so that a carbonate coated filament is obtained. And then, the coated filament is heated in vacuum to reduce the carbonates to their alkaline earth oxides of the emitter material, and also to form a complex oxide consisting of the aluminum oxide and the alkaline earth oxides. Adhesion between the emitter material and the aluminum oxide layer is improved by the formation of the complex oxide, so that a lamp life of the discharge lamp is remarkably increased. On the other hand, since the Fe-Cr-Al alloy has a much higher specific resistance value than tungsten, the discharge lamp using the filament of the Fe-Cr-Al alloy can be operated by a small current, which in turn enables a lamp driving circuit to be reduced in size and weight.

公开(公告)号：US07022195B2

公开(公告)日：2006-04-04

申请号：US10415104

申请日：2002-09-09

申请人： Ryuji Otani ,  Toshio Ikuta ,  Takashi Kozai ,  Hiroyuki Okada ,  Shinji Fujimoto ,  Shigetoshi Sakon

发明人： Ryuji Otani ,  Toshio Ikuta ,  Takashi Kozai ,  Hiroyuki Okada ,  Shinji Fujimoto ,  Shigetoshi Sakon

IPC分类号： B26B19/06

CPC分类号： B26B19/044 ,  Y10T29/49996

摘要： An inner cutter for a dry shaver is fabricated from a metal plate to have a plurality of blades each provided with cutting edges. The metal plate includes a plurality of parallel straight slits to leave an array of straight beams each defined between the adjacent ones of the slits. The beams are forged and ground at a segment of each beam to give the cutting edges thereto. After making the cutting edges, the metal plate is bent into a generally U-shaped configuration so as to correspondingly curve the beams and shape the beams into the blades having the arcuate contour and the cutting edges. The metal plate is provided with a joint for connection with a driving source of moving the inner cutter relative to an outer cutter.

摘要翻译： 用于干燥剃须刀的内刀片由金属板制成，以具有多个刀片，每个刀片均设有刀刃。 金属板包括多个平行的直的狭缝，以留下每个限定在相邻狭缝之间的直线阵列。 梁在每个梁的段处锻造和研磨以给予切割边缘。 在制作切割刃之后，将金属板弯曲成大致U形的构造，以相应地弯曲梁并将梁成形为具有弓形轮廓和切割刃的刀片。 金属板设置有用于与内刀片相对于外刀片移动的驱动源连接的接头。

公开(公告)号：US09108325B2

公开(公告)日：2015-08-18

申请号：US13009226

申请日：2011-01-19

申请人： Shigetoshi Sakon ,  Kenji Narita ,  Jyuzaemon Iwasaki ,  Makoto Fukutani ,  Hiroaki Shimizu ,  Takeshi Shiba

发明人： Shigetoshi Sakon ,  Kenji Narita ,  Jyuzaemon Iwasaki ,  Makoto Fukutani ,  Hiroaki Shimizu ,  Takeshi Shiba

IPC分类号： B26B19/02 ,  B26B19/38

CPC分类号： B26B19/384

摘要： An electric shaver includes: a main body; an outer blade provided to an end of the main body and having a blade hole defined by a bar; and an inner blade provided inward of the outer blade and configured to reciprocate in a longitudinal direction of the outer blade to cut hair in the blade hole with the outer blade. The bar has a hair raising portion coming in contact with hair upon movement of the outer blade on a skin surface to raise hair up from the skin surface. A contact pressure on the skin surface to be exerted by the outer blade in a first portion of the outer blade is greater than that in a second portion of the outer blade. Hair raising performance in raising hair up from the skin surface in the first portion is smaller than hair raising performance in the second portion.

摘要翻译： 电动剃须刀包括：主体; 设置在主体的端部并具有由杆限定的叶片孔的外刀片; 以及内刀片，其设置在所述外刀片的内侧，并且构造成沿所述外刀片的纵向方向往复运动，以利用所述外刀片在所述刀片孔中切割毛发。 该条具有在外刀片在皮肤表面上移动时与毛发接触的毛发部分，以从皮肤表面抬起头发。 在外刀片的第一部分中由外刀片施加的皮肤表面上的接触压力大于外刀片的第二部分中的接触压力。 在第一部分中从皮肤表面抬起头发的起毛性能小于第二部分中的头发抬高性能。