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1. 发明专利

JP4112188B2 Data storage device 有权
公开(公告)号：JP4112188B2
公开(公告)日：2008-07-02
申请号：JP2001067700
申请日：2001-03-09
申请人：シャープ株式会社
发明人：良子小原 , 明濱田
IPC分类号： G06F12/14 , G06F21/24 , G09C1/00 , G11B20/10 , G11B27/00 , H04L9/08 , H04L29/06
CPC分类号： H04L63/06 , H04L9/0894
摘要： In an encryption storage apparatus (data storage apparatus) (1), when entered an allocation request signal (a1), a key management section (7) outputs a generation request signal (b) to a random number generation section (3). The random number generation section (3) generates a pseudorandom number as an encryption key (c) at the entering timing of the generation request signal (b), and the key management section (7) causes a volatile key storage section (4) to store the encryption key (c) and returns a corresponding key number (a2) to a user side. When the user enters an encryption instructing signal (a3) and the key number (a2) to the key management section (7), the key management section (7) reads out the corresponding encryption key (c), and an encryption section (5) converts entered data (d1) into encrypted data (d2) and stores the encrypted data (d2) in a nonvolatile storage section (2). When the user enters decryption instructing signal (a4) and the key number (a2) to the key management section (7), the key management section (7) reads out the corresponding encryption key (c) and a decryption section (6) converts the encrypted data (d2) to decrypted data (d3). This can prevent non-interested persons from recognizing stored data in a nonvolatile storage apparatus in chain manner.

2. 发明专利

JP4707335B2 Storage device, an image forming apparatus and the file server 有权
公开(公告)号：JP4707335B2
公开(公告)日：2011-06-22
申请号：JP2004163719
申请日：2004-06-01
申请人：シャープ株式会社
发明人：明濱田 , 信哉貴志
IPC分类号： G06F21/24 , G06F3/06 , G06F12/00 , G06F12/14 , G11B20/10 , G11B27/10
摘要： PROBLEM TO BE SOLVED: To provide a storage device for efficiently performing a deletion processing, an image forming apparatus, and a file server thereof. SOLUTION: The storage device includes a head 42 for writing/reading data in/from a storage medium 40; and an I/F 34 for receiving data to be written by the head 42 and transmitting the read data. The storage device (HDD) 20 stores data to be read/written and management data, including identification information of the data and storage address information, in the storage medium 40. The I/F 34 receives a data deletion request. When a control part 32 detects the data deletion request, the head 42 and a driving part 38 are controlled, so as to perform overwriting on the data to be deletion and to perform deletion. COPYRIGHT: (C)2006,JPO&NCIPI

4. 发明专利

JP4137413B2 Electronic data content certification methods and information processing apparatus 有权
公开(公告)号：JP4137413B2
公开(公告)日：2008-08-20
申请号：JP2001254652
申请日：2001-08-24
申请人：シャープ株式会社
发明人：佳世岡本 , 明濱田
IPC分类号： G06F12/00 , G06F12/14 , G06F21/24 , G09C1/00

5. 发明专利

JP4040357B2 Clock transmission device and an image forming apparatus using the same 有权
公开(公告)号：JP4040357B2
公开(公告)日：2008-01-30
申请号：JP2002136083
申请日：2002-05-10
申请人：シャープ株式会社
发明人：潔井上 , 孝郎堀内 , 準一梶原 , 明濱田 , 慶臣濱野 , 光玉垣 , 裕基甲斐 , 浩一角田 , 明彦谷口
IPC分类号： H03L7/22 , H04B15/02 , H03L7/093

6. 发明专利

JP4372668B2 Copying apparatus, copying system, copy management system, copying control method, a program, and a recording medium recording the program 有权
公开(公告)号：JP4372668B2
公开(公告)日：2009-11-25
申请号：JP2004339093
申请日：2004-11-24
申请人：シャープ株式会社
发明人：孝郎堀内 , 明濱田
IPC分类号： G03G21/04 , B41J29/38 , B42D3/18 , G03G21/00 , G03G21/02 , G06F3/12 , H04N1/00
CPC分类号： G03G21/04
摘要： A copy device of the present invention prevents an inappropriate copying operation by monitoring whether or not a copying operation is appropriate, when a user intends to copy an original document which is restricted from being copied. The copy device includes: a user ID acquiring section for acquiring a user ID; a book ID acquiring section for acquiring a book ID; a first acquiring section for acquiring from an administration server an academic conference book-classification associated with the user ID; a second acquiring section for acquiring, from the administration server, a library book-classification associated with the book ID; and a copy control section for controlling a copying operation to be performed with respect to a book, based on the academic conference book-classification, and the library book-classification.

7. 发明专利

JP4298496B2 Printer to be used in the print management system and the print management system 有权
公开(公告)号：JP4298496B2
公开(公告)日：2009-07-22
申请号：JP2003433473
申请日：2003-12-26
申请人：シャープ株式会社
发明人：昌史沖上 , 明濱田
IPC分类号： B41J29/38 , G06F3/12 , B41J29/00 , G06F12/14 , G06F21/62 , G06Q30/06 , G06Q50/00 , G06Q50/10 , H04L9/08

8. 发明专利

JP4073091B2 Authentication device and authentication method of electronic documents 有权
公开(公告)号：JP4073091B2
公开(公告)日：2008-04-09
申请号：JP25769298
申请日：1998-09-11
申请人：シャープ株式会社
发明人：明濱田
IPC分类号： G07C1/00 , G09C1/00 , H04L9/32

9. 发明专利

JP3822464B2 Image extraction method, a recording medium recording an image processing apparatus and program 有权
公开(公告)号：JP3822464B2
公开(公告)日：2006-09-20
申请号：JP2001180413
申请日：2001-06-14
申请人：シャープ株式会社
发明人：健二木村 , 明濱田
IPC分类号： G06T1/00 , G06T7/00
摘要： PROBLEM TO BE SOLVED: To provide an image extracting method that increase the degree of freedom to area extraction and also can easily extract an image area by selecting the image area arbitrarily by alternately using real space and color space by a user, and to provide an image processor and a recording medium on which a program is recorded. SOLUTION: An area extracting part 10 of an image processor 1 is provided with a range designation processing part 11, a data color accumulation processing part 12, a real space selection processing part 13, a color space selection processing part 14, a closed curve processing part 15, a partial determination processing part 16 for performing partial determination processing, an operation processing part 17 for processing a user's operation instruction by an operation panel, a display processing part 18 for performing display processing of data stored in an original image buffer 21 and in a color space buffer 22, the original image buffer 21, the color space buffer 22, a selected area buffer 23 and a partial determination area buffer 24, and selects a range including an image area desired to be extracted by using both displays of pieces of image data reflecting in each other and a color space distribution coinciding with the image data and extracts the image area.

10. 发明专利

JP3537888B2 Kana-kanji conversion device 失效
公开(公告)号：JP3537888B2
公开(公告)日：2004-06-14
申请号：JP25038494
申请日：1994-10-17
申请人：シャープ株式会社
发明人：明濱田
IPC分类号： G06F17/22

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