Toshiba had 210 patents in future of work during Q1 2024. Toshiba Corp’s patents filed in Q1 2024 include innovations such as a fixing unit with a controller that adjusts power to a heater element during start-up, a power supply circuit with multiple transistors and a Zener diode, a transmission buffer with a variable current source and switch port, a seating detection device using electrostatic capacitance, and an image forming apparatus with a processor adjusting transfer bias based on resistance values and potential estimation. GlobalData’s report on Toshiba gives a 360-degree view of the company including its patenting strategy. Buy the report here.

Toshiba grant share with future of work as a theme is 52% in Q1 2024. Grant share is based on the ratio of number of grants to total number of patents.

Recent Patents

Application: Image forming apparatus and heating method (Patent ID: US20240103414A1)

The patent filed by Toshiba Corp. describes a fixing unit for an image forming apparatus that includes a first heater element with increasing electrical resistance as temperature rises. The controller of the fixing unit adjusts the duty ratio of electric power applied to the first heater element during start-up to reach the target operating temperature efficiently. By varying the duty ratio, changes in resistance with heating can be compensated, allowing for faster achievement of the target temperature.

The fixing unit also includes a second heater element and a controller that varies the duty ratio of electric power applied to both heater elements based on specific conditions being satisfied. These conditions include start-up from an idle or unheated state, with the controller increasing the duty ratio of electric power applied to the first heater element at fixed time intervals. Additionally, sensors for heater temperature, film temperature, and ambient temperature are used to determine whether the conditions for adjusting the duty ratio are met. Overall, the patent focuses on optimizing the heating process of the fixing unit in an image forming apparatus to improve efficiency and performance.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.