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A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 8116193 | Optical recording medium, manufacturing method for optical recording medium, and reproducing method for optical recording medium An optical recording medium includes a main-information area in which a metal reflection film is formed on a substrate where a row of pits is formed as main data, and a sub-information area in which is recorded medium identification information, which is used to ide... | 02/14/2012 |
| 8026046 | Method for producing multi-layer optical disk A method for producing a multilayer optical disk including a plurality of information storage layers is disclosed. The method includes a mastering step of preparing a plurality of metal dies, a replicating step of producing a base plate onto which a desired pattern ... | 09/27/2011 |
| 7948860 | Optical recording medium, manufacturing method for optical recording medium, and reproducing method for optical recording medium An optical recording medium includes a main-information area in which a metal reflection film is formed on a substrate where a row of pits is formed as main data, and a sub-information area in which is recorded medium identification information, which is used to ide... | 05/24/2011 |
| 7821909 | Optical recording medium, manufacturing method for optical recording medium, and reproducing method for optical recording medium An optical recording medium includes a main-information area in which a metal reflection film is formed on a substrate where a row of pits is formed as main data, and a sub-information area in which is recorded medium identification information, which is used to ide... | 10/26/2010 |
| 7820234 | Manufacturing method of optical information recording medium A method of manufacturing an optical information recording medium to/from which signals can optically be recorded and reproduced. The recording medium includes a signal substrate (100), a signal recording layer (110), and a transparent cover layer (... | 10/26/2010 |
| 7764592 | Optical recording medium, method for manufacturing the same, recording/playback method, and recording/playback apparatus An optical recording medium that allows information to be recorded and played back properly, even when a type of recording medium in which information is recorded to grooves is used along with a type of recording medium in which information is recorded to lands, as ... | 07/27/2010 |
| 7616552 | Phase-change optical recording medium having first and second track pitches An optical disc or other optical recording medium enables reading barcode-shaped-BCA marks in a burst cutting area (BCA) with tracking on while making tampering with the BCA marks difficult. The optical disc 100 has a first area 102 containing tracks a... | 11/10/2009 |
| 7540006 | Optical information recording medium and manufacture method thereof An optical information recording medium includes one or more information layers including a recording layer for recording/reproducing an information signal by irradiation with a laser light, and a seperating layer or a protective substate on which a first informatio... | 05/26/2009 |
| 7525893 | Electron beam recorder and electron beam irradiation position detecting method An electron beam recorder includes an electron optical system for irradiating an electron beam on a master of an information recording medium and an electron beam irradiation position detecting unit for detecting an irradiation position of the electron beam in the e... | 04/28/2009 |
| 7474604 | Electron beam recorder, electron beam irradiation position detecting method and electron beam irradiation position controlling method An electron beam recorder includes an electron optical system for irradiating the electron beam on a master of an information recording medium and a shielding plate for shielding the electron beam. An electron beam irradiation quantity detector is provided on the sh... | 01/06/2009 |
| 7359305 | Electron beam recorder and electron beam irradiation position detecting method An electron beam recorder includes an electron optical system for irradiating an electron beam on a master of an information recording medium and an electron beam irradiation position detecting unit for detecting an irradiation position of the electron beam in the e... | 04/15/2008 |
| 7272099 | Exposure apparatus of an optical disk master, method of exposing an optical disk master and pinhole mechanism An exposure apparatus of an optical disk master having a laser source, a deflector for deflecting a recording laser beam obtained based on the laser beam of the laser source and an objective lens for focusing the recording laser beam on an optical disk master, has a... | 09/18/2007 |
| 7236434 | Exposure apparatus of an optical disk master, method of exposing an optical disk master, and wavefront fluctuation correction mechanism Apparatus and method for exposing an optical disk master having a laser source, a deflector for deflecting a recording laser beam based on the laser beam of the laser source and an objective lens for focusing the recording laser beam on an optical disk master, inclu... | 06/26/2007 |
| 7101588 | Apparatus and method for applying liquid material to form a resin layer A liquid material is applied by spin coating it onto a first main surface of a flat plate to form a coating of the liquid material thereon. The flat plate includes a second main surface which is opposite to the first main surface and a hole which passes through the ... | 09/05/2006 |
| 7068590 | Optical disc and manufacturing method for the same The width and/or depth of guide grooves on the disc substrate surface are changed in each data recording layer and the guide groove depth of the recording film layer is appropriately shaped in each data recording layer to provide a high density, high recording capac... | 06/27/2006 |
| 7053394 | Recording device of master disk for information recording medium Two light beams are incident on the same position on a surface of an object (105) to be measured obliquely from upper sides facing each other, and positions at which the reflecting light beams are incident on respective predetermined detection surfaces are de... | 05/30/2006 |
| 7046613 | Exposure apparatus of an optical disk master, method of exposing an optical disk master and pinhole mechanism An exposure apparatus of an optical disk master having a laser source, a deflector for deflecting a recording laser beam obtained based on the laser beam of the laser source and an objective lens for focusing the recording laser beam on an optical disk master, has a... | 05/16/2006 |
| 6894959 | Method and apparatus for exposing optical disk master A method for exposing an optical disk master includes rotating a substrate disk coated with a photoresist, focusing a beam on the photoresist for exposure through an objective lens, and exposing the photoresist so as to form tracks on the substrate disk in its circu... | 05/17/2005 |
| 6882605 | FOCUSING METHOD, METHOD OF DETECTING FOCAL POINT DEVIATION, METHOD OF FORMING MASTER OF DATA STORAGE MEDIUM, FOCUSING CONTROL UNIT, UNIT FOR DETECTING FOCAL POINT DEVIATION, AND UNIT FOR FORMING MASTER OF DATA STORAGE MEDIUM Focusing control for maintaining a distance between an objective lens and a recording medium constant is executed using light whose wavelength is longer than that of recording light and whose detection sensitivity is better than that of the recording light, and a de... | 04/19/2005 |
| 6842420 | Optical disc having plural grooves of different depths The width and/or depth of guide grooves on the disc substrate surface are changed in each data recording layer and the guide groove depth of the recording film layer is appropriately shaped in each data recording layer to provide a high density, high recording capac... | 01/11/2005 |
| 6835432 | Optical disc and method for manufacturing the optical disc An optical disc comprises a first base plate having a surface in which a recess is formed and a multi-layer structure disposed over the surface. The multi-layer structure includes a reflection layer, a recording layer, and a transparent member. The reflection layer ... | 12/28/2004 |
| 6700862 | Optical disc and manufacturing method for the same The width and/or depth of guide grooves on the disc substrate surface are changed in each data recording layer and the guide groove depth of the recording film layer is appropriately shaped in each data recording layer to provide a high density, high reco... | 03/02/2004 |
