Dai Nippon Printing Co., Ltd.

Akio Morii

Kenji Ueda

Hiroyuki Ohtaki

Satoru Hamada

Shingo Nishikawa

Hideyuki Iriyama

Takehiko Anegawa

Shigehiko Tahara

A mechanical quantity sensor includes a first structure having a fixed portion with an opening, a displaceable portion arranged in the opening and displaceable relative to the fixed portion, and a connection portion connecting the fixed portion and the displaceable portion, a second structure having a weight portion joined to the displaceable portion and a pedestal joined to the fixed portion, and arranged and stacked on the first structure, and a base having a driving electrode and a detection electrode arranged on a face facing the weight portion, connected to the pedestal, and arranged and stacked on the second structure. The second structure has a recessed portion arranged in an area on a face of the weight portion facing the second base, the area corresponding to an area where the driving electrode and the detection electrode are not arranged.

Mechanical quantity sensor and method of manufacturing the same

A mechanical quantity sensor includes a first structure having a fixed portion with an opening, a displaceable portion arranged in the opening and displaceable relative to the fixed portion, and a connection portion connecting the fixed portion and the displaceable portion, a second structure having a weight portion joined to the displaceable portion and a pedestal joined to the fixed portion, and arranged and stacked on the first structure, and a base having a driving electrode and a detection electrode arranged on a face facing the weight portion, connected to the pedestal, and arranged and stacked on the second structure. The second structure has a projection arranged in an area on a face of the weight portion facing the base, the area corresponding to an area where the driving electrode and the detection electrode are not arranged, the projection having a thickness larger than thicknesses of the driving electrode and the detection electrode.

A method for correcting a mask pattern used for dry-etching an object with higher accuracy, and for manufacturing an acceleration sensor and an angular velocity sensor. The object is first etched by a dry-etching process using an uncorrected reference mask pattern. Then, distribution of the size of expansion of a tapered portion formed in a surface of the object is measured. Thereafter, the measured distribution is approximated by using a quadratic curve (Y=AX+B) so as to determine A and B. Consequently, an amount t of correction for the tapered portion, which is expressed by the following equation (1) and related to a width of an opening of the mask pattern in a position at a distance r from a center of the object to be etched, can be set. In this way, the correction for the tapered portion can be carried out.=()/2&#x2003;&#x2003;(1)

Method for correcting mask pattern and method for manufacturing acceleration sensor and angular velocity sensor by using the method for correcting the mask pattern

A mechanical quantity sensor includes: a first structure having a fixed portion with an opening, a displaceable portion disposed in the opening and displaceable relative to the fixed portion, and a connection portion connecting the fixed portion and the displaceable portion to each other; a second structure having a weight portion joined to the displaceable portion and a pedestal joined to the fixed portion, the second structure being stacked on the first structure; a first base having a first driving electrode which is disposed on a surface facing the displaceable portion and is made of a conductive material containing Al and Nd, the first base being stacked on the first structure while being connected to the fixed portion; and a second base having a second driving electrode which is disposed on a surface facing the weight portion and is made of the conductive material, the second base being stacked on the second structure while being connected to the pedestal.

A multilayered volume hologram structure of the invention comprises a substratefor a certificate or the like, and an adhesive layer, a volume hologram layerand a surface protective filmlaminated on the substrate in the described order. When a multilayer structure consisting of the volume hologram layerand surface protective layeris forcibly released from the substrate for the purpose of making a photograph replacement or falsifying a personal information area, the volume hologram image can break down certainly, thereby ensuring prevention of falsification. A multilayered volume hologram structure-making label is useful for making a multilayered volume hologram structure.

Multilayered volume hologram structure and label for making multilayered volume hologram structure

A multilayered volume hologram structure of the invention comprises a substratefor a certificate or the like, and an adhesive layera volume hologram layerand a surface protective filmlaminated on the substrate in the described order. When a multilayer structure consisting of the volume hologram layerand surface protective layeris forcibly released from the substrate for the purpose of making a photograph replacement or falsifying a personal information area, the volume hologram image can break down certainly, thereby ensuring prevention of falsification. A multilayered volume hologram structure-making label is useful for making a multilayered volume hologram structure.

Multilayered volume hologram structure, and label for making multilayered volume hologram structure

A multilayered volume hologram structure of the invention comprises a substrate for a certificate or the like, and an adhesive layer , a volume hologram layer and a surface protective film laminated on the substrate in the described order. When a multilayer structure consisting of the volume hologram layer and surface protective layer is forcibly released from the substrate for the purpose of making a photograph replacement or falsifying a personal information area, the volume hologram image can break down certainly, thereby ensuring prevention of falsification. A multilayered volume hologram structure-making label is useful for making a multilayered volume hologram structure.

A multilayered volume hologram structure of the invention comprises a substrate for a certificate or the like, and an adhesive layer a volume hologram layer and a surface protective film laminated on the substrate in the described order. When a multilayer structure consisting of the volume hologram layer and surface protective layer is forcibly released from the substrate for the purpose of making a photograph replacement or falsifying a personal information area, the volume hologram image can break down certainly, thereby ensuring prevention of falsification. A multilayered volume hologram structure-making label is useful for making a multilayered volume hologram structure.

The invention relates to a liquid crystal display device which enables a visual field range to be made wide and luminance drops to be reduced, so that bright displayed images can be presented, and provides a liquid crystal display device comprising, in order from a side of backlight backlight scatter plate and liquid crystal element wherein a transmission type of hologram scatter plate is located in front of a display surface of liquid crystal display element Hologram scatter plate because of having been fabricated by means of single-step or two-step exposure, enables light more or less scattered through scatter plate to be limitedly scattered within a given wide visual field range, so that bright displayed images can be presented over a wide visual field range yet with a reduced luminance drop. Scatter plate may be omitted.

Liquid crystal display device using a hologram, hologram scatter plate, and process of replicating a diffuse reflection type hologram

The invention relates to a liquid crystal display device which enables a visual field range to be made wide and luminance drops to be reduced, so that bright displayed images can be presented, and provides a liquid crystal display device comprising, in order from a side of backlight , backlight , scatter plate , and liquid crystal element , wherein a transmission type of hologram scatter plate is located in front of a display surface of liquid crystal display element . Hologram scatter plate , because of having been fabricated by means of single-step or two-step exposure, enables light more or less scattered through scatter plate to be limitedly scattered within a given wide visual field range, so that bright displayed images can be presented over a wide visual field range yet with a reduced luminance drop. Scatter plate may be omitted.

The invention provides a hologram-recording subject plate comprising a block and a variety of subjects fixedly contained therein, which ensures easy, stable yet continuous recording of a multiplicity of identical holograms or different holograms reconstructible by illuminating light as is the case with a hologram-replicating method, a hologram-making method using the same, and a hologram-recorded article. The subject plate comprises a transparent solid block,and a hologram-recording subject S contained therein. A photosensitive material film,is applied directly onto one surface of the subject plate, and the subject plate is then irradiated with laser light,through the photosensitive material film,Such simple operation enables a multiplicity of identical holograms to be recorded in an easy, stable yet continuous manner.

Subject plate for recording holograms, hologram-making method, and hologram-recorded article

The invention provides a hologram-recording subject plate comprising a block and a variety of subjects fixedly contained therein, which ensures easy, stable yet continuous recording of a multiplicity of identical holograms or different holograms reconstructible by illuminating light as is the case with a hologram-replicating method, a hologram-making method using the same, and a hologram-recorded article. The subject plate comprises a transparent solid block 5 and a hologram-recording subject S contained therein. A photosensitive material film 1 is applied directly onto one surface of the subject plate, and the subject plate is then irradiated with laser light 7 through the photosensitive material film 1. Such simple operation enables a multiplicity of identical holograms to be recorded in an easy, stable yet continuous manner.

Recorded volume holograms with multiple adhesive layers

The invention relates to a liquid crystal display device which enables a visual field range to be made wide and luminance drops to be reduced, so that bright displayed images can be presented, and provides a liquid crystal display device comprising, in order from a side of backlight 11, backlight 11, scatter plate 12, and liquid crystal element 20, wherein a transmission type of hologram scatter plate 13 is located in front of a display surface of liquid crystal display element 20. Hologram scatter plate 13, because of having been fabricated by means of single-step or two-step exposure, enables light more or less scattered through scatter plate 12 to be limitedly scattered within a given wide visual field range, so that bright displayed images can be presented over a wide visual field range yet with a reduced luminance drop. Scatter plate 12 may be omitted.

Growing community of inventors

Tokyo, Japan

Akio Morii