Sakae Technical Paper Co., Ltd. (Sakae TP) is a Japanese manufacturer specializing in printing, tracing, and specialty papers since 1960. They are renowned for producing high-quality products such as Tomoe River S notebooks and pads, favored by fountain pen enthusiasts for their smooth texture and minimal ink bleed-through. Sakae TP's offerings include various sizes and styles, including A5 and B5 formats with blank, dot grid, and graph layouts. Their products are available through various retailers, including JetPens and Vanness, making them accessible to customers worldwide.