Hitachi Global Storage Technologies Netherlands B.v.

Hgst Netherlands, B.v.

Western Digital Technologies, Inc.

Sony Semiconductor Solutions Corporation

Nippon Mektron Limited

Hitachi Global Storage Technologies

Tomoki Hiramatsu

Kohji Takahashi

Takeji Sumiya

Takahisa Okada

Takao Suzuki

Toshio Takahashi

Kouki Uefune

Hiroyasu Tsuchida

Hitoshi Tsujino

Takeshi Saito

Katsuya Watanabe

Satoshi Matsumura

Teruhiro Nakamiya

Takuma Muraki

Nobuyuki Ishii

Kazuhisa Murakami

Nobuyuki Oka

Tetsuo Yuki

Takashi Takenaka

Shota Seki

Toshihisa Kiyonaga

Tatsuo Sekimoto

Motoji Takemoto

Michiya Totoki

Shuichi Kiyomoto

The quantum efficiency can be improved. A solid-state imaging device according to an embodiment includes: a plurality of pixels () arranged in a matrix, in which each of the pixels includes a first semiconductor layer (), a photoelectric conversion section (PD) disposed on the first semiconductor layer on a side of a first surface, an accumulation electrode () disposed on the first semiconductor layer close to a side of a second surface on a side opposite to the first surface, a wiring () extending from the second surface of the first semiconductor layer, a floating diffusion region (FD) connected to the first semiconductor layer via the wiring, and a first gate () that forms a potential barrier in a charge flow path from the first semiconductor layer to the floating diffusion region via the wiring.

Solid-state imaging device and electronic apparatus

The present disclosure generally relates to a lock mechanism for a tape embedded drive. The tape embedded drive comprises an enclosure enclosing a first tape reel, a second tape reel, and a lock mechanism. The first tape reel comprises a first gear, the second tape reel comprises a second gear, and the lock mechanism is disposed between the first and second gears. The lock mechanism comprises a latch lock, one or more latch tips disposed at a first end of the latch lock, a magnet disposed at a second end of the latch lock, and an electromagnet disposed adjacent to the magnet. When the electromagnet is activated, the latch lock moves to an unlocked position. When the electromagnet is de-activated, the latch lock moves to a locked position where the one or more latch tips are in contact with the first and second gears.

Embedded tape reel lock mechanism for tape embedded storage drive

A HDD including a temperature sensor for sensing ambient temperature in the HDD, a spindle motor comprising a fluid dynamic bearing; and a controller configured for adjusting a rotational speed of the spindle motor based on the measured ambient temperature while a rigidity of the fluid dynamic bearing is maintained, and reducing power consumption of the HDD based on the adjusting the rotational speed of the spindle motor.

Adjusting rotational speed based on ambient temperature in a HDD

A disk drive comprising a guide member configured to guide a strip-shaped flexible wiring board, wherein the strip-shaped flexible wiring board has one end attached to a side portion of a carriage that is rotatably supported, in such a way that another end thereof is oriented toward a mounting position. A U-shaped component of the guide member comprises a pair of edge components and is formed into a U-shape, wherein the U-shaped component is inserted between two projecting components comprising a front-side projecting component and a rear-side projecting component which are arranged to a front and a rear portion of the carriage respectively and are provided on a side portion of the carriage, and the pair of edge components come into contact with the two projecting components, respectively, wherein the U-shaped components is elastically deformed in such a way that the pair of edge components come closer together.

Magnetic disk device and guide member for guiding a flexible wiring board

Embodiments in accordance with the present invention allow a resin member accommodating therein a trace, to have a small thickness. An HDD according to an embodiment of the present invention includes a resin accommodation member fixed to a side surface of arms. Part of a trace is accommodated in a slit formed in the accommodation member. Accommodating part of the trace in the slit helps suppress fluttering of the trace and improve head positioning accuracy. A corrugated surface structure is formed on each of surfaces of the arms and the accommodation member in abutment with each other. The corrugated surface structure is used to position the accommodation member in a pivot direction. The accommodation member, having the corrugated surface structure for positioning on the surface being fixed, can be made to have a thin wall.

Disk drive apparatus and head assembly using a resin member to accommodate a wire structure

For cushioning a shock to prevent problems such as a reading error, a ramp for a magnetic disc apparatus is made of a resin material for forming a ramp main body and a material having higher rigidity than the resin material, disc facing surfaces in the disc insertion portion for inserting a magnetic disc is provided with disc contact portions made of the high rigidity material, a bottom surface portion of a concave portion of the disc insertion portion is constructed by a combination of a bottom surface portion made of the resin material and a bottom surface portion made of the high rigidity material, and a step structure is provided by arranging the bottom surface portion made of the high rigidity material at a position moved rearward in a depth direction of the concave portion in comparison with the bottom surface portion made of the resin material.

Cushioning ramp having a stepped structure for a magnetic disc apparatus

Embodiments of the present invention provide a suspension assembly having a dielectric limiter. According to one embodiment, the suspension assembly includes a load beam and a flexure assembly. The flexure assembly includes a metal layer where there are formed a fixing portion fixed to the load beam, main rings, and extending from the fixing portion, sub-rings, and a flexure tongue having moving-side limiter coupling portions defined thereon. Fixing-side limiter coupling portions are defined at the main rings. Dielectric limiters each have a gross length larger than a between-coupling-portions distance between a fixing-side limiter coupling portion and a moving-side limiter coupling portion, and couple the fixing-side limiter coupling portion to the moving-side limiter coupling portion.

Suspension assembly including a limiter having a gross length larger than a between-coupling-portions distance between coupling portions

Embodiments of the invention prevent contact between a peripheral edge of a magnetic disk and a counter surface of a ramp when the magnetic disk is displaced. In one embodiment, a ramp is disposed near the peripheral side surface of a magnetic disk. The ramp has magnetic disk retainers each having slide surfaces and counter surfaces respectively facing the recording surfaces of the magnetic disk. Grooves or recesses are formed in the counter surfaces to define relief spaces. When the peripheral side surface of the magnetic disk is displaced toward the counter surface by shocks exerted on the magnetic disk drive, the relief space prevents the peripheral edge from coming into contact with the counter surface. Thus the amount of particles produced by the collision of the magnetic disk with the ramp can be reduced.

Shock improvement ramp for load/unload mechanism and magnetic disk drive

Embodiments of the invention provide, in a compact magnetic disk drive, a stable structure capable of reducing self-oscillation occurring from disk spinning, while suppressing generation of dust and dirt. In one embodiment, a magnetic disk is mounted on a hub of a spindle motor. A clamp is further attached to secure the magnetic disk in position. A plurality of opening portions are formed in the clamp around an axis. A counterweight formed of an elastic material is mounted in the opening portion by being press-fitted therein. The counterweight is less likely to generate dust and dirt through friction during insertion and looseness. A gap is provided between the clamp and the hub at locations near the opening portions. The counterweight has a protruded portion on a side surface of a circular column portion. The protruded portion slides into the gap between the clamp and the hub, counteracting a tendency of the counterweight to drop out of position.

Magnetic disk drive with adjustment of rotational balance

A flexible printed circuit board using a lead-free solder is to be fixed within a disk enclosure while ensuring a high rigidity. In one embodiment, a rotating disk storage device comprises a flexible printed circuit board (FPC), wherein there is formed a wiring pattern including a signal line for the transmission of a signal of data read by a head in an actuator head suspension assembly (AHSA) and wherein one side end portion is fixed to a base and an opposite side end portion is fixed to the AHSA. A first metallic plate and a second metallic plate are both fixed to one side end portion of the FPC. A connector is disposed in an area where the first metallic plate in the FPC is provided, and connected to the wiring pattern. A shock sensor is disposed in an area where the second metallic plate in the FPC is provided, and connected to the wiring pattern. A reinforcing plate of a synthetic resin is, in an opposed state of the first and second metallic plates fixed to one side end portion of the FPC, held between the opposed faces of both metallic plates and is fixed to the base together with both metallic plates.

Rotating disk storage device with high rigidity flexible printed circuit board

Formation of wear powder caused by wear of a ramp which is attributable to mutual contact of a lift tab and the ramp is to be reduced in loading and unloading operations. In one embodiment, a spindle motor is turned on by application of power, then the temperature of a ramp is measured and it is determined whether the temperature of the ramp has reached a preset temperature (about 25&#xb0; C.) or not. If the answer is negative, a heater is energized to heat the ramp for raising the temperature of the ramp. When it is detected that the temperature of the ramp has reached the preset temperature, the heating of the ramp is stopped and the execution of loading and unloading operations is permitted, then an ordinary processing is started.

Growing community of inventors

Kanagawa, Japan

Tomoki Hiramatsu