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    • 61. 发明授权
    • Shearing tool for synthetic resin tubes
    • 合成树脂管剪切工具
    • US4094064A
    • 1978-06-13
    • US787577
    • 1977-04-14
    • Hideichi NishikawaMasaharu Sakamoto
    • Hideichi NishikawaMasaharu Sakamoto
    • B26B13/16B26B13/26B26B13/00
    • B26B13/16B26B13/26
    • A shearing tool for synthetic resin tubes in which a lower jaw is connected to the leading end of an upper handle portion, a lower handle portion is pivoted at the leading end to the rear and lower end of said lower jaw, an upper jaw or shearing blade having a cutting edge is pivoted in an intermediate position to said upper handle portion above the pivot connection of said lower jaw to said lower handle portion, said lower jaw is provided with an arcuate tube receiving recess in the upper surface thereof, an opening is provided in forward portion of said upper handle portion extending therefrom to the leading end of said lower jaw for receiving said upper jaw, a connection link is connected between the rear end portion of said blade interposed between said upper and lower handle portions and the lower handle portion in a position rearwardly of said pivot connection of the lower jaw to said lower handle portion for urging said cutting edge toward said tube receiving recess when said upper and lower handle portions are pivoted toward each other and a spring is provided for normally urging said upper and lower handle portions away from each other when said tool is in its non-operative position.
    • 一种用于合成树脂管的剪切工具,其中下钳口连接到上把手部分的前端,下手柄部分在前端枢转到所述下钳口的后端和下端,上钳口或剪切 具有切割刃的刀片在中间位置处枢转到所述上手柄部分在所述下钳口的枢转连接件上方到所述下手柄部分处,所述下钳口在其上表面中设置有弓形管容纳凹部, 设置在所述上​​把手部分的前部,从其延伸到所述下钳口的前端以接收所述上钳口,连接杆连接在插在所述上手柄部分和下把手部分之间的所述刀片的后端部分之间, 部分位于所述下钳口的所述枢转连接的后方的位置到所述下把手部分,用于当所述向上的所述向上推动所述切削刃朝向所述管接收凹部 每个和下部手柄部分彼此枢转,并且提供弹簧,用于当所述工具处于其非操作位置时正常地将所述上部和下部手柄部分彼此远离地推动。
    • 65. 发明授权
    • Managing device keys in cryptographic communication
    • 管理加密通信中的设备密钥
    • US07593528B2
    • 2009-09-22
    • US11853932
    • 2007-09-12
    • Kohichi KamijohMasaharu Sakamoto
    • Kohichi KamijohMasaharu Sakamoto
    • H04L9/12
    • H04L9/0836H04L2209/601
    • To delegate authority for cryptographic communication without increasing the risk of leaking a device key. A system and method including a first communication apparatus and a managing apparatus allowing the first communication apparatus to perform cryptographic communication with an external at least one second communication apparatus. The managing apparatus includes: storing a first device key shared with the second communication apparatus; generating a computation by passing the first device key read from the stored keys to a keyed one-way function, to generate a computed result as a second device key; and outputting the second device key and a key of the one-way function to the first communication apparatus. The first communication apparatus transmits a key of a one-way function to the second communication apparatus causing the second communication apparatus to perform a computation which generates a second device key, and which performs a cryptographic communication with a second communication apparatus.
    • 授权加密通信,而不增加泄漏设备密钥的风险。 一种包括第一通信装置和管理装置的系统和方法,其允许第一通信装置与外部至少一个第二通信装置执行密码通信。 管理装置包括:存储与第二通信装置共享的第一装置密钥; 通过将从所存储的密钥读取的第一设备密钥传递到键控单向功能来生成计算,以生成计算结果作为第二设备密钥; 以及将所述第二设备密钥和所述单向功能的密钥输出到所述第一通信设备。 第一通信装置向第二通信装置发送单向功能的密钥,使得第二通信装置执行产生第二装置密钥的计算,并且执行与第二通信装置的密码通信。