Toshiba Tec Kabushiki Kaisha

Kabushiki Kaisha Toshiba

Hitachi Global Storage Technologies Netherlands B.v.

Hitachi, Ltd.

Hgst Netherlands, B.v.

Hitachi Global Storage Technologies Japan, Ltd.

Sony Corporation

Hisashi Kimura

Takafumi Amano

Kimitoshi Etoh

Katsuro Watanabe

Tomohiro Okada

Kazuhiro Nakamoto

Hiroyuki Hoshiya

Nobuo Yoshida

Masaaki Futamoto

Hiromasa Takahashi

Yoshiaki Kawato

Kenichi Meguro

Mikito Sugiyama

Takashi Kawabe

Isao Nunokawa

Atsushi Kato

Kazuhiko Hosomi

Chiaki Ishikawa

Kaori Suzuki

Chiseki Haginoya

Norihiro Ookawa

Hideo Matsuyama

Kikuo Kusukawa

Kaori Totsuka

Kazuyuki Yamamoto

Hidetoshi Kabasawa

Kenji Sugiura

Masafumi Mochizuki

Moriaki Fuyama

Hiroshi Ide

Tomohiko Abe

Tadao Kamano

Seiji Kawaberi

Taku Shintani

Yuta Udo

Masahiko Hatatani

Wataru Kimura

Akira Sato

Norihiro Ohse

Michihisa Yano

Tsutomu Arai

Tsuneharu Nomura

Tutomu Yasuda

Tadashi Umezawa

A toner container installed in an image forming apparatus includes a toner container main body having a predetermined length and in which toner is accommodated, a discharge port through which the toner is discharged from the toner container main body, a shutter which opens and closes the discharge port, a handle provided on the toner container main body, and a pressed portion provided on the toner container main body and which is pressed by the image forming apparatus to project the handle out from the image forming apparatus.

Toner container

A microwave-assisted recording head comprises a main pole configured to emit a recording magnetic field for affecting a magnetic medium, the main pole serving as a first electrode and having a front portion at an air bearing surface (ABS) and a rear portion extending from the front portion. A microwave oscillator is positioned on a trailing side surface of the main pole. The trailing-side surface of the main pole forms a flat plane along the front and rear portions and is inclined with respect to a leading side surface at the front portion. The head body is inclined at an acute angle to the ABS, such that an acute angle, between 10 and 30 degrees, is formed between the trailing side surface of the main pole and the ABS.

MAMR head with inclined MAMR head body

In one embodiment, a perpendicular magnetic recording head includes a main magnetic pole; a leading shield below a leading side of the main magnetic pole; a leading gap between the leading shield and the main magnetic pole; a trailing shield above a trailing side of the main magnetic pole; a trailing gap between the trailing shield and the main magnetic pole; and a nonmagnetic leading bump between the main magnetic pole and the leading shield. Additional embodiments are also disclosed.

Perpendicular recording head with leading bump in the main pole having narrow leading gap (LG)

In one embodiment, a magnetic head includes a main pole configured to emit a recording magnetic field for affecting a magnetic medium, the main pole serving as a first electrode and having a front portion at an air bearing surface (ABS) of the magnetic head and a rear portion extending from the front portion in an element height direction perpendicular to the ABS, wherein an upper surface of the main pole has a step transitioning from the front portion to the rear portion, a conductive layer positioned above the main pole, the conductive layer serving as a second electrode, a microwave oscillator positioned between the main pole and the conductive layer at the ABS of the Magnetic head and extending beyond the step in the element height direction, and a current confinement layer positioned between the microwave oscillator and the rear portion of the main pole.

Microwave-assisted magnetic recording (MAMR) head with a current confinement structure

A 3-dimensional operation input apparatus, a control apparatus, a control system, a control method, and a handheld apparatus are provided with which planar operations are possible without an increase in the number of components. An input apparatus includes an angular velocity sensor unit and an acceleration sensor. A threshold value is set to angular velocity values detected by the angular velocity sensor unit. Depending on whether the angular velocity values are smaller than the threshold value and whether at least one of acceleration values is larger than a threshold value, a switch can be made between a planar operation mode and a 3-dimensional operation mode. Therefore, a switch can be made between the planar operation mode and the 3-dimensional operation mode without having to use a sensor other than the acceleration sensor and the angular velocity sensor without increasing the number of components.

Input apparatus, control apparatus, control system, control method, and handheld apparatus

Embodiments of the invention reduce the throat height of a single pole type head with high accuracy. In one embodiment, a head with an electro lapping guide for controlling a write head's throat height during air bearing surface processing is made. Air bearing surface processing is performed using the electro lapping guide. For a read head, processing is performed using the read head itself or an electro lapping guide for the read head so that both the throat height of write head and the element height of read head are controlled.

Magnetic head with electro lapping guide

An optically assisted magnetic recording head causes light to be efficiently incident on a near-field light generating element and is thereby capable of efficiently generating near-field light. The optically assisted magnetic recording head, according to one embodiment, has a waveguide and a thin metal film. The waveguide has a core and a clad at least partially surrounding the core and serves as near-field light generating device. The core has a plate-shaped portion that has a small width and protrudes from an edge of the core. The edge of the core is located on the air bearing surface side. The thin metal film is provided on an upper portion and side portions of the plate-shaped portion to cover the edge of the core at the air bearing surface side. Other systems and methods are disclosed as well to achieve efficient incident light on a near-field light generating element.

Optically assisted magnetic recording head having a waveguide core with a plate-shaped portion protruding from an air bearing surface side of the core

Embodiments of the invention provide a perpendicular magnetic recording head that causes the difference between a physical track width and an effective track width to be small. Sides of a main pole are made concave with the concave vertex on each side located close to a trailing edge of the main pole.

Perpendicular magnetic recording head

Embodiments of the present invention help to provide a method for manufacturing a perpendicular magnetic recording head including a main magnetic pole having a width that does not generally vary. According to one embodiment, a magnetic film, a first inorganic mask film, an organic film, a second inorganic mask film, and a resist pattern are formed in this order. Reactive ion etching (RIE) is performed using the resist pattern as a mask to etch the second inorganic mask film and the organic film and form a mask for the subsequent step. A flow rate of an Ar gas is then controlled, and ion milling is performed, to correct a difference between the width of the mask located at the central portion of the wafer and the width of the mask located at the outer peripheral portion of the wafer. The magnetic film is processed to have a uniform track width. Ion milling is then performed to form the main magnetic pole having an inverted trapezoidal shape.

Method for manufacturing perpendicular magnetic recording head

Growing community of inventors

Kanagawa, Japan

Hisashi Kimura