In order to strengthen our lineup of laser printers, we have launched the color laser multifunction printer MFC-L9670CDN series. The main features of the device are output of 40 sheets per minute, vibrant and glossy color image, durability, energy saving and support for various media. This device earned BLI 2023 Pick Awards from Keypoint Intelligence. The devise completed the 150,000-impresssion reliability test with no misfeeds and no service calls. As a result, the device received an excellent rating for reliability. This paper describes an overview of fixing technology implemented in the device related to increasing printing speed, improving image quality, and realizing high durability.

We predicted the appearance of IoT (Internet of Things) devices in 2030 by referring to the roadmap of individual technologies such as ICT (Information and Communication Technology), secondary batteries, various power supply technologies, CPU (Central Processing Unit) and GPU (Graphics Processing Unit) performance, and communication standards and speeds. As the number of IoT devices is expected to increase in the future, we propose the installation of a low-power man-sensor communication unit with the aim of supplying energy used for sensing and communication by energy harvesting and improving the efficiency of work performed by humans.

Electronic tile (e-Tile) using electrophoretic type electronic paper display technology is expected to offer energy-saving wall-displays. We have prototyped e-Tile of 10cm square, and demonstrated 2m square display using 400 e-Tiles. Remarkably low power of 4wats for the 2m square display was confirmed. Sufficient durability of e-Tile for practical use was confirmed as results of continuous rewriting tests. A hybrid color display system using e-Tile and a projector was also proposed and demonstrated. In addition, prototypes of cubic displays of 10cm and 30cm cube were demonstrated as an example of expanding application, including 3D surfaces, of e-Tile.

Thermocells, also known as thermogalvanic or thermoelectrochemical cells, are gaining increasing attention for their potential in sustainable energy harvesting applications. These devices use temperature-dependent redox reactions to generate electricity, offering a high Seebeck coefficient compared to conventional thermoelectric materials. This review provides an overview of the historical development of thermocells, from early studies of galvanic corrosion to their evolution into modern energy harvesting systems. Recent advances in thermocell materials are discussed, such as the use of host-guest systems, ionic liquid electrolytes, and performance-enhancing additives. There is also discussion of improvements in electrode materials, such as the shift from precious metals to low-cost carbon-based alternatives. Finally, we present our group's recent developments in thermocells, showcasing practical demonstrations of energy harvesting from body heat and solar thermal energy. This review aims to provide a comprehensive understanding of thermocells, their current challenges, and their promising future in energy conversion technologies.

Organic semiconductors are good materials for green technology with low energy consumption for the fabrication of electronic devices. In this paper, liquid crystals are focused as suitable materials for organic semiconductors. Liquid crystals have self-organization manner, which helps the fabrication of uniform and flat crystalline thin film by common solution process. In fast speed solution process such as dip coating and blade coating techniques, the usage of liquid crystallinity is key factor to fabricate the uniform and flat crystalline thin films, which show high mobility over 4cm²/Vs and small variation of transistor performance. Therefore, the liquid crystals are a good candidate for organic semiconductor materials having high productively and high transistor performance.